GORSUCH, Circuit Judge.
Nearly a decade after Keith Prost pleaded guilty to engaging in a money laundering conspiracy, the Supreme Court issued United States v. Santos, 553 U.S. 507, 128 S.Ct. 2020, 170 L.Ed.2d 912 (2008), interpreting the statute under which Mr. Prost stood convicted. In light of that new interpretation, Mr. Prost says his guilty plea should be revisited and his conviction undone. The problem is that Mr. Prost never pursued a statutory interpretation argument in his own trial court proceedings, on appeal, or in his initial collateral challenge to his conviction. And he concedes that 28 U.S.C. § 2255(h) doesn’t permit him a second collateral challenge to raise such an argument now. So, it would seem, Mr. Prost’s long-final criminal conviction must remain just that: final.
Not so, says Mr. Prost. Even now, Mr. Prost insists, he should be allowed to proceed with his statutory interpretation argument under 28 U.S.C. § 2241, if not § 2255. The district court rejected this argument and so must we. Congress has told us that federal prisoners challenging the validity of their convictions or sentences may seek and win relief only under the pathways prescribed by § 2255. To this rule, Congress has provided only one exception: a federal prisoner may resort to § 2241 to contest his conviction if but only if the § 2255 remedial mechanism is “inadequate or ineffective to test the legality of his detention.” 28 U.S.C. § 2255(e). And that exception doesn’t apply here. Mr. Prost was free to bring a Santos-type statutory interpretation argument in his initial § 2255 motion, and an initial § 2255 motion offered him an adequate and effective means for testing such an argument. The fact that § 2255 bars Mr. Prost from bringing his statutory interpretation argument now, in a second § 2255 motion almost a decade after his conviction, doesn’t mean the § 2255 remedial process was ineffective or inadequate to test his argument. It just means he waited too long to raise it.
I
In 1998, Mr. Prost found himself, along with a dozen colleagues, indicted in the Eastern District of Missouri for participating in a drug trafficking operation. Eventually, Mr. Prost pleaded guilty to one count of conspiring to possess and distribute methamphetamine, in violation of 21 U.S.C. § 846, and two counts of conspiring to launder proceeds derived from a drug dealing operation, in violation of 18 U.S.C. § 1956. See United States v. Prost, No. 98-CR-264-ERW (E.D.Mo. Jan. 22, 1999) (unpublished). After being convicted and sentenced in 1999, Mr. Prost filed a collateral challenge pursuant to 28 U.S.C. § 2255 in the Eastern District of Missouri seeking to vacate his sentence, though not his conviction. The district court rejected that effort in 2004, Prost v. United States, No. 00-CV-98-ERW (E.D.Mo. Jan. 12, 2004) (unpublished), and the Eighth Circuit agreed with the district court’s disposition, Prost v. United States, No. 04-1394 (8th Cir. July 6, 2004) (unpublished).
That seemed to mark the end of the legal road for Mr. Prost. But then, nearly a decade after his conviction became final, the Supreme Court handed down Santos. There, at least in the context of an illegal lottery operation, the Court held that the term “proceeds” in the federal money laundering statute, 18 U.S.C. § 1956, means “profits,” and not just “gross receipts.” 553 U.S. at 514, 128 S.Ct. 2020. So, to establish a violation of § 1956, the Supreme Court instructed, the government had to show that the defendant in Santos laundered the lottery’s profits, not merely its gross receipts.
Appreciating Santos’s potential significance for his case, Mr. Prost filed a petition for habeas corpus pursuant to 28 U.S.C. § 2241, asking to have his money laundering conspiracy convictions reopened and overturned. He claimed that the funds he laundered were only the gross receipts, not the profits, of the drug dealing operation, and so he was innocent of any money laundering crime. Because § 2241 petitions must be brought in the district of incarceration, Mr. Prost filed his petition in federal district court in Colorado as, by this time, he was serving his sentence at the federal prison camp in Florence, Colorado.
The district court immediately identified one problem with Mr. Prost’s § 2241 petition. Congress long ago decided that a federal prisoner’s attempt to attack the legality of his conviction or sentence generally must be brought under § 2255, and in the district court that convicted and sentenced him — here, the Eastern District of Missouri. Meanwhile, § 2241 petitions, brought in the district where the prisoner is confined, are generally reserved for complaints about the nature of a prisoner’s confinement, not the fact of his confinement. Before the Colorado district court, Mr. Prost acknowledged all this, and conceded that his petition does not challenge the condition of his confinement but rather attempts a frontal assault on his conviction.
Under these circumstances, a district court would normally dismiss Mr. Prost’s § 2241 petition without prejudice so that he might refile it as a § 2255 motion in the appropriate sentencing court. See Bradshaw v. Story, 86 F.3d 164, 167 (10th Cir.1996). Alternatively, a district court might construe Mr. Prost’s petition as a § 2255 motion and transfer it to the sentencing court for review. But Mr. Prost sought to avoid both these outcomes. Before the Colorado district court, he admitted that years earlier he had filed (and lost) one motion under § 2255 — a motion in which he attacked only his sentence. Mr. Prost also admitted that Congress, in the Anti-terrorism and Effective Death Penalty Act of 1996 (“AEDPA”), has restricted the availability of second or successive § 2255 motions to claims involving either newly discovered evidence strongly suggestive of innocence or new rules of constitutional law made retroactive by the Supreme Court. See 28 U.S.C. § 2255(h). And, Mr. Prost admitted, a new statutory interpretation, such as the one announced in Santos, is neither of those things. Mr. Prost thus acknowledged that he is prohibited by § 2255(h) from bringing a Santos-based challenge to his money laundering convictions in a second motion.
But, Mr. Prost noted, § 2255(e) includes a so-called “savings clause” which sometimes allows a federal prisoner to resort to § 2241 to challenge the legality of his detention, not just the conditions of his confinement. To fall within the ambit of savings clause and so proceed to § 2241, a prisoner must show that “the remedy by motion [under § 2255] is inadequate or ineffective to test the legality of his detention.” 28 U.S.C. § 2255(e). Section 2255 is both of these things in his case, Mr. Prost submitted, because § 2255(h) bars him from pursuing an argument that, in light of the Supreme Court’s statutory interpretation in Santos, he should’ve been found not guilty of the money laundering charges against him.
The district court rejected this contention, holding that “[t]he fact that Mr. Prost may be barred [by § 2255(h) ] from raising his claims in a second or successive motion ..., by itself, does not demonstrate that the remedy provided in § 2255 is inadequate or ineffective.” See Prost v. Wiley, 08-CV-2246-BNB, 2008 WL 4925667, at *2 (D.Colo. Nov. 13, 2008) (unpublished). It is from this ruling that Mr. Prost now appeals.
II
A criminal conviction is “a decisive and portentous event.” Wainwright v. Sykes, 433 U.S. 72, 90, 97 S.Ct. 2497, 53 L.Ed.2d 594 (1977). Before any conviction, the accused enjoys a presumption of innocence, a right to trial by jury, and a range of evidentiary and procedural guarantees secured by the Constitution and multifold statutes. All of this stems from our society’s aspiration to protect the innocent against the possibility of a wrongful conviction, an aspiration long given voice in the common law by Blackstone’s maxim that it is a better thing for ten guilty persons to escape punishment than for one innocent to suffer wrongly. See 4 William Blackstone, Commentaries *358; see also Alexander Volokh, “n Guilty Men,” 146 U. Penn. L.Rev. 173 (1997). While perhaps no criminal justice system in history can convincingly claim to have succeeded entirely in preventing the conviction of the innocent, ours concentrates its considerable resources “at [the] time and place [of trial or plea in an effort] to decide, within the limits of human fallibility, the question of guilt or innocence of one of [our fellow] citizens.” Wainwright, 433 U.S. at 90, 97 S.Ct. 2497. We then double- and sometimes triple-check the result through our layered appellate system. Only after that appellate process is exhausted does the criminal proceeding yield what our legal system recognizes as a “final judgment.” The principle of finality, the idea that at some point a criminal conviction reaches an end, a conclusion, a termination, “is essential to the operation of our criminal justice system.” Teague v. Lane, 489 U.S. 288, 309, 109 S.Ct. 1060, 103 L.Ed.2d 334 (1989); see also McCleskey v. Zant, 499 U.S. 467, 491, 111 S.Ct. 1454, 113 L.Ed.2d 517 (1991). In every case there comes a time for the litigation to stop, for a line to be drawn, and the parties encouraged to move forward rather than look back. “A procedural system which permits an endless repetition of inquiry into facts and law in a vain search for ultimate certitude,” the Supreme Court has explained, “implies a lack of confidence about the possibilities of justice that cannot but war with the effectiveness of underlying substantive commands .... There comes a point where a procedural system which leaves matters perpetually open no longer reflects humane concern but merely anxiety and a desire for immobility.” McCleskey, 499 U.S. at 492, 111 S.Ct. 1454 (quoting Paul M. Bator, Finality in Criminal Law and Federal Habeas Corpus for State Prisoners, 76 Harv. L.Rev. 441, 452-53 (1963)). Anxiety and immobility, of course, are accompanied by other social costs — to victims, their families, to future potential victims, to the government, and to the courts — that revisiting and retesting convictions five or ten years old — or (as here) even older — can involve.
Even though a criminal conviction is generally said to be “final” after it is tested through trial and appeal, Congress is free to provide still further safeguards against wrongful convictions. And Congress has done just that in many statutes over the course of our history. Most relevant for purposes of this case, in 28 U.S.C. § 2255 Congress has chosen to afford every federal prisoner the opportunity to launch at least one collateral attack to any aspect of his conviction or sentence. This, of course, is exactly the opportunity Mr. Prost exercised unsuccessfully back in 2004.
But Congress didn’t stop there. If a prisoner’s initial § 2255 collateral attack fails, as Mr. Prost’s did, Congress has indicated that it will sometimes allow a prisoner to bring a second or successive attack. Recognizing the enhanced finality interests attaching to a conviction already tested through trial, appeal, and one round of collateral review, however, Congress has specified that only certain claims it has deemed particularly important — those based on newly discovered evidence suggestive of innocence, or on retroactively applicable constitutional decisions — may be brought in a second or successive motion. See 28 U.S.C. § 2255(h); supra n. 2.
Yet, even here Congress has provided an out. A prisoner who can’t satisfy § 2255(h)’s conditions for a second or successive motion may obviate § 2255 altogether if he can show that “the remedy by motion” provided by § 2255 is itself “inadequate or ineffective to test the legality of his detention.” 28 U.S.C. § 2255(e). In these “extremely limited circumstances,” Caravalho v. Pugh, 177 F.3d 1177, 1178 (10th Cir.1999) (internal quotation omitted), a prisoner may bring a second or successive attack on his conviction or sentence under 28 U.S.C. § 2241, without reference to § 2255(h)’s restrictions. It is, however, the prisoner’s burden to show that these conditions, prescribed by § 2255(e)’s so-called “savings clause,” apply to his case. See Miller v. Marr, 141 F.3d 976, 977 (10th Cir.1998).
And that’s where the rubber meets the road in this case. Mr. Prost seeks to avoid § 2255(h) and proceed directly to § 2241. But to do so, to overcome the presumption of finality attaching to his conviction, he must carry the burden of showing that § 2255(e)’s savings clause applies to his case. It is that question that lies at the heart of this case and to which we now turn.
Ill
In asking whether § 2255 is “inadequate or ineffective to test the legality of [a prisoner’s] detention,” the question naturally arises: compared to what? When trying to ascertain whether something is “inadequate or ineffective,” after all, we usually ask: inadequate or ineffective to what task? Dictionaries define “inadequate” to mean “not equal to requirement,” and “ineffective” as “[o]f such a nature as not to produce any, or the intended, effect.” See 7 Oxford English Dictionary 770, 902 (2d ed.1989). Both definitions presuppose some metric or measure — some “requirement” or “effect” — that should be but isn’t met. In what follows, we first define the yardstick against which we must measure § 2255’s adequacy and effectiveness before then assessing how Mr. Prost’s arguments stack up.
A
The relevant metric or measure, we hold, is whether a petitioner’s argument challenging the legality of his detention could have been tested in an initial § 2255 motion. If the answer is yes, then the petitioner may not resort to the savings clause and § 2241. That this is the appropriate metric for measuring savings clause claims is clearly indicated by the clause’s plain language, its context and history, as well as our own precedent.
First, the saving clause’s text. The clause begins by juxtaposing the terms “inadequate or ineffective” with the phrase “to test the legality of [a prisoner’s] detention.” From this, the clause’s intended requirement, effect, or metric starts to emerge. If a petitioner’s argument challenging the legality of his detention could’ve been tested in a § 2255 motion, the clause is satisfied. In this way, the clause is concerned with process — ensuring the petitioner an opportunity to bring his argument — not with substance — guaranteeing nothing about what the opportunity promised will ultimately yield in terms of relief. The clause’s text emphasizes this point further by proceeding to focus on the question whether the overall § 2255 motions process offers an adequate and effective “remedy.” Section 2255(e) expressly distinguishes between the terms remedy and relief, stating that § 2241 is not available to a petitioner simply because a “court has denied him relief’; to invoke the savings clause, it must “also appearf ] that the remedy by motion is inadequate or ineffective.” § 2255(e) (emphasis added); see also 28 U.S.C. § 2254(b)(1)(A) (using the word remedy — in the context of requiring state prisoners to exhaust state remedies■ — to mean avenue for relief, not relief itself). Here again, the clause emphasizes its concern with ensuring the prisoner an opportunity or chance to test his argument. Here again it underscores that with this opportunity comes no guarantee about outcome or relief. The ultimate result may be right or wrong as a matter of substantive law, but the savings clause is satisfied so long as the petitioner had an opportunity to bring and test his claim.
Recognizing these features of the savings clause’s plain language, we have long and repeatedly said that a petitioner’s “[flailure to obtain relief under § 2255 does not establish that the remedy so provided is either inadequate or ineffective,” Bradshaw, 86 F.3d at 166 (quoting Williams v. United States, 323 F.2d 672, 673 (10th Cir.1963)) (emphasis added), and that an “erroneous decision on a § 2255 motion” doesn’t suffice to render the § 2255 remedy itself inadequate or ineffective, Sines v. Wilner, 609 F.3d 1070, 1073 (10th Cir.2010). Many other circuits have reached similar conclusions. See, e.g., Cradle v. U.S. ex rel. Miner, 290 F.3d 536, 539 (3d Cir.2002) (“Section 2255 is not inadequate or ineffective merely because the sentencing court does not grant relief. ...”); In re Vial, 115 F.3d 1192, 1194 n. 5 (4th Cir.1997) (en banc) (“[T]he remedy afforded by § 2255 is not rendered inadequate or ineffective merely because an individual has been unable to obtain relief under that provision.”).
Second, the immediate context in which the savings clause appears reveals that it doesn’t guarantee multiple opportunities to test a conviction or sentence. When seeking a statute’s ordinary meaning we must of course take care to study not just the particular isolated clause at issue but also its suirounding context. See U.S. Nat’l Bank of Or. v. Indep. Ins. Agents of Am., 508 U.S. 439, 454, 113 S.Ct. 2173, 124 L.Ed.2d 402 (1993) (“[Tjext consists of words living a communal existence, ... the meaning of each word informing the others and all in their aggregate taking their purport from the setting in which they are used.” (internal quotation and alteration omitted)). Here, the savings clause’s near neighbor, § 2255(h), added in 1996 as part of AEDPA, restricts second and successive motions to those raising newly discovered evidence or new constitutional rulings. When Congress adopted § 2255(h), it was undoubtedly aware that prisoners might wish to press other sorts of arguments in second or successive motions. And it was surely aware that prisoners might seek to pursue second or successive motions based on newly issued statutory interpretation decisions. See Davis v. United States, 417 U.S. 333, 347, 94 S.Ct. 2298, 41 L.Ed.2d 109 (1974) (holding long before AEDPA that claims of innocence based on new statutory interpretations could be brought in a § 2255 motion); see also Merck & Co. v. Reynolds, — U.S. —, 130 S.Ct. 1784, 1795, 176 L.Ed.2d 582 (2010) (“We normally assume that, when Congress enacts statutes, it is aware of relevant judicial precedent.”). Indeed, cognizant that prisoners would seek to pursue motions based on new statutory interpretations, Congress in § 2255(f)(3) aimed to ensure that they may assert such claims in initial § 2255 motions without risk of being time-barred, explaining that the one-year statute of limitations for bringing a first § 2255 motion begins to run only from “the date on which the right asserted was initially recognized by the Supreme Court, if that right has been newly recognized by the Supreme Court and made retroactively applicable to cases on collateral review.” See Haugh v. Booker, 210 F.3d 1147, 1149-50 (10th Cir.2000) (recognizing that the new statutory interpretation announced in Bailey establishes the kind of “right” needed to take advantage of § 2255(f)(3)). But, just as evidently, in subsection (h) Congress chose to preclude petitioners from raising such statutory innocence claims — among many other kinds of claims — in second or successive § 2255 motions.
Reading the savings clause in this context, it is evident that a prisoner generally is entitled to only one adequate and effective opportunity to test the legality of his detention, in his initial § 2255 motion. If the rule were otherwise — if the § 2255 remedial mechanism could be deemed “inadequate or ineffective” any time a petitioner is barred from raising a meritorious second or successive challenge to his conviction — subsection (h) would become a nullity, “a meaningless gesture.” United States v. Barrett, 178 F.3d 34, 50 (1st Cir.1999). If the rule were otherwise — if, say, courts were to read subsection (h) as barring only losing second or successive motions — the statute’s limitations would be effectively pointless and, as the Second Circuit has recognized, Congress would have “accomplished nothing at all in its attempts — through statutes like the AED-PA — to place limits on federal collateral review.” Triestman v. United States, 124 F.3d 361, 376 (2d Cir.1997); see also McGhee v. Hanberry, 604 F.2d 9, 10 (5th Cir.1979) (“It is well established that a prior unsuccessful § 2255 motion is insufficient, in and of itself, to show the inadequacy or ineffectiveness of the remedy.”); cf. Gray-Bey v. United States, 201 F.3d 866, 876 (7th Cir.2000) (Easterbrook, J., dissenting) (“Judicial emphasis must be on ‘test’: a § 2255 motion is not ‘inadequate or ineffective’ merely because the petitioner loses. Nor do the changes made by the AEDPA, which limit the number of § 2255 motions (and the time to file them) render § 2255 inadequate or ineffective to test the lawfulness of detention. No one is entitled to more than one collateral attack.”); United States v. Guerrero, Nos. 10-3177 & 10-3179, — Fed.Appx. —, 2011 WL 286362 (2011) (unpublished) (“That [defendant] may be barred from bringing another § 2255 motion ... does not establish that the remedy set out in § 2255 is inadequate or ineffective.”).
Third, our reading comports with the even larger statutory context in which subsections (e), (f), and (h) appear. The emphasis on providing a single opportunity to test arguments, rather than any guarantee of relief or results, can be found throughout §§ 2255 and 2254. Federal prisoners seeking to take advantage of new rulings of constitutional magnitude that would render their convictions null and void are not always allowed to do so in second or successive motions. See, e.g., 28 U.S.C. § 2255(h) (permitting federal prisoners to take advantage only of new constitutional rules that the Supreme Court has expressly declared to have retroactive application); see also Dodd v. United States, 545 U.S. 353, 125 S.Ct. 2478, 162 L.Ed.2d 343 (2005). State prisoners seeking to show that the state court’s adjudication on the merits was contrary to clearly established federal law may not rely on Supreme Court precedent decided after that adjudication, even in their initial federal habeas petitions. See 28 U.S.C. § 2254(d)(1); see also Brown v. Greiner, 409 F.3d 523, 533-34 (2d Cir.2005). And the ineffectiveness or incompetence of counsel during collateral post-conviction proceedings “shall not be a ground for relief in a proceeding arising under section 2254.” § 2254(i). When viewed in the context of AEDPA as a whole, it is unsurprising that the plain language of § 2255 means what it says and says what it means: a prisoner can proceed to § 2241 only if his initial § 2255 motion was itself inadequate or ineffective to the task of providing the petitioner with a chance to test his sentence or conviction.
Fourth, an examination of the history of the savings clause confirms our reading. Before § 2255 was enacted in 1948, federal prisoners who wanted to challenge any aspect of their detention — its legality or the conditions of their confinement — had to do so in a § 2241 petition filed in the district where they were incarcerated. This meant that all federal collateral attacks were concentrated in those few districts housing federal penitentiaries. United States v. Hayman, 342 U.S. 205, 212-14, 72 S.Ct. 263, 96 L.Ed. 232 (1952). That situation proved problematic when Congress, in 1867, statutorily expanded the availability of collateral relief, flooding the federal district courts whose jurisdictions encompassed federal prisons with a tide of post-conviction motions. Id. To alleviate the burden, Congress passed § 2255, requiring federal prisoners to bring challenges to the lawfulness of their detentions in the districts where they were originally convicted and sentenced. See 28 U.S.C. § 2255(a). From this history, the Supreme Court has concluded that § 2255 wasn’t adopted to expand or “impinge upon prisoners’ rights of collateral attack upon their convictions,” but only to address the “difficulties that had arisen in administering” habeas corpus. Hayman, 342 U.S. at 219, 72 S.Ct. 263. Simply put, Congress included the savings clause to ensure that those who couldn’t comply with § 2255’s new venue mandate were still provided with at least one opportunity to challenge their detentions. This isn’t to say that the language Congress employed in the savings clause is necessarily limited only to remedying venue problems. But it is to say that the history of the clause illustrates that Congress’s purpose in enacting it surely wasn’t to ensure that a prisoner will win relief on a meritorious successive motion, or receive multiple bites at the apple.
Fifth, our reading of the savings clause is in harmony with the decisions of this court that have permitted resort to the clause. So, for example, in Spaulding v. Taylor, the defendant’s sentencing court had been abolished by the time the prisoner sought to bring his initial collateral attack. 336 F.2d 192 (10th Cir.1964). Because the defendant’s § 2255 motion had to be brought in the (now nonexistent) sentencing court, that remedial mechanism was necessarily inadequate and ineffective to test the legality of his detention and so we permitted him to bring his challenge in the district court where he was confined. Id. at 193-94. Likewise, we’ve held that resort to § 2241 is the norm rather than the exception when a military prisoner seeks to challenge the results of his court martial. This is due to the evanescent nature of court martial proceedings: the sentencing court literally dissolves after sentencing and is no longer available to test a prisoner’s collateral attack. See Ackerman v. Novak, 483 F.3d 647, 649 (10th Cir.2007); see also Witham v. United States, 355 F.3d 501, 505 (6th Cir.2004). In every case in this circuit dealing with the savings clause, we have recognized the narrowness of the language and allowed resort to § 2241 sparingly, only when an adequate or effective means for testing a § 2255 petition was genuinely absent.
Having held that the savings clause is satisfied so long as a petitioner could’ve raised his argument in an initial § 2255 motion, it is obvious Mr. Prost’s effort to invoke the clause must fail. He does not contend that he faced any difficulty in bringing an initial § 2255 motion in the court where he was sentenced. Neither does he dispute that an initial § 2255 motion would’ve been up to the task of testing the Santos argument he now presses. After all, Mr. Santos included in his initial § 2255 motion the argument that the money laundering statute’s use of the term “proceeds” encompassed only profits, not gross revenues. Despite repeated challenges by the government, taken all the way to the Supreme Court, Mr. Santos ultimately prevailed. Plainly, § 2255 is up to the job of testing the question whether the money laundering statute requires proof of profits. Of course, § 2255(h)’s restrictions on second and successive motions bar Mr. Prost from trying a Santos argument now, nearly a decade after his conviction and long after pursuing his initial § 2255 motion. But that fact doesn’t mean that the § 2255 remedial regime is inadequate or ineffective to test such an argument. It only means that, in Congress’s considered view, finality concerns now predominate and preclude relitigation of Mr. Prost’s criminal judgment.
B
Seeking to avoid this result, Mr. Prost complains that the notion endorsed in San tos — that § 1956 requires proof of profits, not just proceeds — wasn’t in circulation at the time of his first § 2255 motion. In his view, a federal prisoner should have recourse to § 2241 through the savings clause any time he can demonstrate that his initial § 2255 proceeding finished before the Supreme Court announced a new statutory interpretation that would likely undo his conviction. Put differently, Mr. Prost says he should be excused for failing to bring a “novel” argument for relief that the Supreme Court hadn’t yet approved in Santos. In aid of his cause, he says the Ninth Circuit has adopted his view, see Harrison v. Ollison, 519 F.3d 952 (9th Cir.2008), and Stephens v. Herrera, 464 F.3d 895 (9th Cir.2006), though (as we shall see) other circuits have not followed suit, see infra Sections III.C. and III.D.
Respectfully, we cannot agree that the absence of Santos from the U.S. Reports at the time of a prisoner’s first § 2255 motion has anything to do with the question whether § 2255 was an inadequate or ineffective remedial mechanism for challenging the legality of his detention. As we’ve explained, it is the infirmity of the § 2255 remedy itself, not the failure to use it or to prevail under it, that is determinative. To invoke the savings clause, there must be something about the initial § 2255 procedure that itself is inadequate or ineffective for testing a challenge to detention. Problems of that magnitude surely existed in Spaulding and Ackerman, but just as clearly they do not exist here.
We readily acknowledge that, at the time of his first § 2255 motion, it is likely that neither Mr. Prost nor his counsel imagined the particular statutory interpretation argument Santos ultimately vindicated. But in much the same way that a student’s failure to imagine a novel or creative answer to an exam question doesn’t make the exam an inadequate or ineffective procedure for testing his knowledge, the fact that Mr. Prost or his counsel may not have thought of a Santos-type argument earlier doesn’t speak to the relevant question whether § 2255 itself provided him with an adequate and effective remedial mechanism for testing such an argument. The § 2255 remedial vehicle was fully available and amply sufficient to test the argument, whether or not Mr. Prost thought to raise it. And that is all the savings clause requires.
At bottom, Mr. Prost’s novelty test represents no more than a frank policy disagreement with § 2255(h). His real position seems to be less that an initial § 2255 motion would have been inadequate or ineffective to test his argument and more that he has a good excuse for having failed to pursue that argument earlier. The problem, of course, is that in subsection (h) Congress identified the excuses it finds acceptable for having neglected to raise an argument in an initial § 2255 motion. Failing to pursue novel statutory interpretations is not on that list, though Congress was aware situations like this one might arise and fully intended § 2255(h) to bar otherwise meritorious successive petitions. The simple fact is that Congress decided that, unless subsection (h)’s requirements are met, finality concerns trump and the litigation must stop after a first collateral attack. Neither is this court free to reopen and replace Congress’s judgment with our own.
C
Perhaps recognizing the problems with his proposed novelty test, Mr. Prost suggests that, at the very least, he should be excused from having failed to pursue a Santos-type argument in his initial § 2255 motion because Santos’s reading of the money laundering statute was erroneously foreclosed under Eighth Circuit law at the time he was convicted and sentenced. But when it comes to abiding the plain language of § 2255(e) and the larger statutory context and purpose we outlined in Section III.A, Mr. Prost’s alternative “erroneous circuit foreclosure” test fares no better than his novelty test.
Critically, Mr. Prost doesn’t — -and can’t — dispute that he was entirely free to raise and test a Santos-type argument in his initial § 2255 motion. Instead, he argues only that a Santos-type argument likely would have been rejected on the merits at the district court and circuit panel levels because of adverse circuit precedent, leaving him with only en banc and certiorari petitions to try to undo that precedent. But, as we have explained, the plain language of the savings clause does not authorize resort to § 2241 simply because a court errs in rejecting a good argument. The savings clause doesn’t guarantee results, only process. Neither does this fact change merely because the court’s error on the merits happens to be induced by preexisting circuit precedent. We readily acknowledge that circuit precedent sometimes requires judges to reject a claim on its merits, and sometimes that precedent is quite wrong in doing so. But as we’ve already detailed at length, the possibility of an erroneous result — the denial of relief that should have been granted — does not render the procedural mechanism Congress provided for bringing that claim (whether it be 28 U.S.C. §§ 1331, 1332, 2201, 2255, or otherwise) an inadequate or ineffective remedial vehicle for testing its merits within the plain meaning of the savings clause. Whether a statutory interpretation argument is rejected on the merits by a circuit court on the basis of a newly crafted but deficient test, or by application of an old but equally bad test found in circuit precedent makes no difference. Legal error has occurred. And whenever legal error occurs it may very well mean circuit law is inadequate or deficient. But that does not mean the § 2255 remedial vehicle is inadequate or ineffective to the task of testing the argument.
Santos helps illustrate the point. As it happens, Mr. Santos didn’t face any adverse precedent in his circuit when he brought an initial § 2255 motion arguing that proceeds must mean profits under § 1956. But Mr. Santos’s motion succeeded in overturning plenty of adverse § 1956 precedent in other circuits, and there’s no reason to think an initial § 2255 motion would’ve been any less of an adequate or effective means for testing the § 1956 question in the Supreme Court had Mr. Santos’s motion originated from a circuit where the precedent happened to be against him. It is no more than a quirk of fate that the case the Supreme Court used to decide the § 1956 question happened to come from a circuit where the argument was open rather than foreclosed by erroneous circuit precedent. The U.S. Reports are, after all, replete with instances where the Supreme Court has rewarded litigants who took the trouble to challenge adverse circuit precedent. While there is of course no guarantee that any en banc or certiora ri petition will be granted, Mr. Prost can’t dispute that § 2255, as a procedural vehicle, was (and has proven to be) an adequate and effective means for testing the question he now seeks to pose.
Just like his novelty test, Mr. Prost’s erroneous circuit foreclosure test also asks us to disregard § 2255(h). Mr. Prost’s proffered test rests on the view that asking petitioners to pursue arguments precluded by existing circuit law is an imprudent waste of time. On this basis, he effectively (and once again) says that he should be excused for having failed to raise his Nmfos-argument in his first § 2255 motion. But it remains an implacable fact that when enacting subsection (h) Congress didn’t consider Mr. Prost’s excuse strong enough to overcome the finality interests attaching to a conviction already tested through trial, appeal, and one round of collateral review. Neither can we see how we might permit Mr. Prost to proceed with his claim through the § 2255(e)’s savings clause without nullifying (or at least doing much violence to) the restrictions on second and successive motions Congress has imposed in § 2255(h). And this we decline to do.
Mr. Prost’s erroneous circuit foreclosure test overlooks as well § 2255(f). As we have noted, Congress enacted the savings clause against the backdrop of the Supreme Court’s holding in Davis, 417 U.S. at 346-47, 94 S.Ct. 2298, permitting federal prisoners to press statutory claims of innocence in § 2255 motions. Cognizant of such statutory claims, Congress added § 2255(f)(3) to AEDPA to ensure that petitioners may assert new statutory innocence claims in a first § 2255-motion without being time-barred. This suggests that Congress was aware of claims like Mr. Prost’s when it passed AEDPA but chose not to authorize them in successive collateral attacks. To adopt Mr. Prost’s proffered test would require us to ignore this judgment as well.
Although Mr. Prost suggests there is something unusual about barring a claim that rests on a correct and previously foreclosed statutory interpretation, the fact is that many other provisions of AEDPA limit the ability of prisoners to reap the benefit of unforeseeable but helpful new legal developments. The result in his case is thus hardly as anomalous as he suggests. For example, it is well-settled that not every claim of innocence — even one based on new constitutional rules — is authorized in a second or successive collateral challenge. As a result of the interaction between § 2255(f)(3) and § 2255(h)(2) (two provisions included in AEDPA), federal prisoners who file a second or successive § 2255 motion seeking to take advantage of a new rule of constitutional law will usually be time-barred, except in those rare cases where the Supreme Court “announces a new rule of constitutional law and makes it retroactive within one year.” See Dodd, 545 U.S. at 359, 125 S.Ct. 2478 (emphasis added). State prisoners face this same result. See § 2244(d)(1)(C); § 2244(b)(2)(A). Even in a first federal collateral attack, a state prisoner may not rely on a novel Supreme Court decision issued after the state’s adjudication of his claim to demonstrate that adjudication on the merits was “contrary to, or involved an unreasonable application of, clearly established Federal law,” as required by § 2254(d)(1). And though the writ of habeas corpus in its earliest form was largely a remedy against confinement imposed by a court lacking jurisdiction, see McCleskey, 499 U.S. at 478, 111 S.Ct. 1454, this court has barred a state prisoner convicted of murder and sentenced to death by the wrong sovereign from bringing a successive collateral attack to contest his conviction on this basis. See In re Wackerly, No. 10-7062, at 5 (10th Cir. Sept. 3, 2010). This is because, like a statutory claim of innocence, lack of jurisdiction is not one of the two authorized grounds upon which a successive § 2254 motion may be filed. Id.
Untethered from the plain language of the savings clause and in disregard of that clause’s neighboring provisions, Mr. Prost’s erroneous circuit foreclosure test would also undermine Congress’s obvious purposes by upsetting the balance it sought to achieve. Concerned with protecting the innocent, Congress chose in § 2255 to afford federal prisoners the opportunity to attack their convictions or sentences even after the extensive procedures provided for in the plea process, at trial, and on direct appeal. But seeking to temper that interest with the need to provide a degree of finality to criminal convictions, Congress also placed specific restraints on this collateral review. And it is hardly surprising that these restraints become increasingly restrictive as a prisoner’s conviction or sentence is tested through more rounds of review — a fact the Supreme Court has told us falls “well within the compass” of the “evolutionary process” of statutory habeas developments. Felker, 518 U.S. at 664, 116 S.Ct. 2333 (“[Jjudgments about the proper scope of the writ are normally for Congress to make.”). We can well imagine an alternative statutory regime that might strike the balance differently than Congress has done. But it is not our place to adopt a test that replaces the balance Congress reached with one of our own liking.
Mr. Prost emphasizes that the Seventh Circuit has used the erroneous circuit foreclosure test, see In re Davenport, 147 F.3d 605, 610 (7th Cir.1998), and that the test has been employed by a couple other courts, see, e.g., Wofford v. Scott, 177 F.3d 1236, 1244 (11th Cir.1999); Reyes-Requena v. United States, 243 F.3d 893, 904 (5th Cir.2001). But Mr. Prost (and the concurrence) overstate the test’s acceptance and offer no persuasive reason to adopt it. As we’ve already noted, the Ninth Circuit has offered a very different test. See supra Section III.B. And, as we will discuss in a moment, the Second and Third Circuits have vigorously pursued another test still. See infra Section III.D. (Indeed, in creating the erroneous circuit foreclosure test, the Seventh Circuit expressly rebuked the Second Circuit’s test. See In re Davenport, 147 F.3d at 611.) Even among those cases that have employed the erroneous circuit foreclosure test, moreover, none has addressed the textual and structural clues we’ve discussed. For example, the Seventh Circuit in In re Davenport seemed to rely primarily on “practical” considerations, see infra n. 12, and did not consider that the language of the savings clause asks whether § 2255 is adequate to test the legality of a prisoner’s detention, suggesting a concern with assuring some mechanism for assessing the prisoner’s claim. The court likewise did not examine how the savings clause’s meaning is affected by Congress’s inclusion in § 2255(h) of two specific kinds of claims that may be brought in a second or successive collateral attack. It did not discuss how § 2255(f) fits into this picture, or how the saving clause coexists with the larger statutory structure limiting many otherwise successful successive petitions. And, notably too in light of more recent events, it is unclear whether even the Seventh Circuit itself continues to ascribe to the erroneous circuit foreclosure test. See Morales v. Bezy, 499 F.3d 668, 672-73 (7th Cir.2007); id. at 674 (Rovner, J., dissenting) (questioning whether, in light of the majority’s analysis, a petitioner in the Seventh Circuit would still have to establish circuit foreclosure to access § 2241 via the savings clause).
D
While we reject Mr. Prost’s novelty and erroneous circuit foreclosure tests, we pause to acknowledge one more way in which he might have sought to invoke the savings clause and proceed to § 2241. According to the Second and Third Circuits, a petitioner may proceed to § 2241 not only when a court is unavailable to entertain a § 2255 petition — as we have long held in Spaulding and Ackerman — but also when the application of § 2255(h)’s bar against a second or successive motion for collateral review would seriously threaten to render the § 2255 remedial process unconstitutional. See Triestman, 124 F.3d at 377 (savings clause may be triggered where “the failure to allow for collateral review would raise serious constitutional questions”); In re Dorsainvil, 119 F.3d 245, 248 (3d Cir.1997) (“Were no other avenue of judicial review available for a party who claims that s/he is factually or legally innocent as a result of a previously unavailable statutory interpretation, we would be faced with a thorny constitutional issue.”).
In this way, the Second and Third Circuits acknowledge Congress’s authority, in enacting subsection (h), to prescribe which excuses are sufficiently weighty to overlook a petitioner’s failure to bring an argument in a first motion and allow him a second or successive collateral attack. And in doing so, these circuits reject Mr. Prost’s apparent view that courts may use the savings clause as a means to adorn subsection (h) with new excuses they think sensible, the essential foundation on which he seeks to construct the novelty and circuit foreclosure tests. At the same time, if and when the narrowness of subsection (h) poses a difficulty of constitutional dimension, the Second and Third Circuits say, a court may step in to permit the petition to proceed. In support of their view, the Second and Third Circuits rest on the traditional canon of statutory construction that courts should seek to interpret Congress’s statutory handiwork in light of and consistent with the Constitution’s commands.
Whether the savings clause may be used in the fashion the Second and Third Circuits have suggested to avoid serious constitutional questions arising from application of § 2255(h) is an important question. So are the questions whether, when, and how the application of § 2255(h)’s limits on second or successive motions might (ever) raise a serious constitutional question. These are, however, matters we decline to pursue in this particular case. We decline to pursue them in part because Mr. Prost hasn’t. Although Mr. Prost briefly intimates that denying him access to § 2241 would present “constitutional issues,” Opening Br. at 13-14, at no point does he develop any argument why that is so, or even identify what provision of the Constitution he thinks would be offended by the imposition of § 2255(h)’s bar in his case. We generally avoid entertaining arguments for reversing a district court’s judgment that were not adequately developed by a petitioner in his opening brief. See Hill v. Kemp, 478 F.3d 1236, 1250-51 (10th Cir.2007); Headrick v. Rockwell Int’l Corp., 24 F.3d 1272, 1277-78 (10th Cir.1994) (White, J., sitting by designation). Neither do we see any reason to depart from our general practice in this case, given that significant and largely uncharted questions of the Constitution’s meaning, questions whose proper outcome is far from certain, hang in the balance. See generally In re Alvarado, No. 10-4205 (10th Cir. Dec. 2, 2010) (unpublished) (rejecting a suspension clause challenge to § 2255(h) restrictions); Felker, 518 U.S. at 664, 116 S.Ct. 2333 (rejecting a suspension clause challenge to AEDPA’s analogous limitations on second and successive § 2254 petitions); Herrera v. Collins, 506 U.S. 390, 401, 113 S.Ct. 853, 122 L.Ed.2d 203 (1993) (holding that “[d]ue process does not require that every conceivable step be taken, at whatever cost, to eliminate the possibility of convicting an innocent person [as this] would all but paralyze our system for enforcement of the criminal law” (internal quotation omitted)). So it is that we leave these constitutional questions for another day and another case.
IV
The concurrence reaches exactly the same result we do but by a different course. It takes a separate route in part because, it says, this court’s decision “creat[es]” a circuit split. See Concurrence at 599, 605. But of course our decision does nothing of the sort. Long before we arrived on the scene the circuits were already divided three different ways on how best to read the savings clause. We hardly “creat[ed]” any of this. Id. Rather, this case has called on us to enter an already messy field where we have sought to tread carefully, studying the competing points of view expressed by our sister circuits before offering our own considered independent judgment, as we are duty-bound to do.
The concurrence likewise errs when it charges (repeatedly) that we have “bar[red]” or “precludefd]” any means for federal prisoners to take advantage of new statutory decisions in second or successive habeas petitions, leaving this court somehow isolated from “every other” circuit and leaving the parties without the chance to “briefl ] ... the constitutional [avoidance] issue[].” See Concurrence at 599, 603, 605, 607. Again, we have done no such thing. As we have explained, it remains possible that this court might permit a petitioner in Mr. Prost’s position to invoke the savings clause and to do so for the constitutional avoidance reasons stated by the Second and Third Circuits. Today, we close only two roads through the savings clause (novelty and erroneous circuit foreclosure), leaving at least a third open for future litigants to brief and argue (constitutional avoidance). Should this court ultimately join the Second and Third Circuits, we would reach the same substantive outcome as the other circuits that have interpreted the savings clause. It is unclear why the concurrence chooses to disregard these facts.
In places, the concurrence suggests that it would’ve been better — that is, more judicially restrained — for this court first to assume without deciding that the erroneous circuit foreclosure test comports with the savings clause’s language and structure and, then, proceed to hold that Mr. Prost fails even under its terms. See, e.g., Concurrence at 600. But the concurrence fails to explain how this would have been the more restrained approach, and in the end the concurrence tellingly abandons the project.
To be sure, assuming without deciding the validity of a particular test is often the narrower and easier approach to resolving a case, and we recognize that it very well may have been easier and narrower in our earlier savings clause cases to assume without deciding the propriety of the erroneous circuit foreclosure test. See Concurrence at 7-8 (citing unpublished cases). But the same just doesn’t hold true in this case. Far from easily and narrowly resolving Mr. Prost’s claim, applying the “erroneous circuit foreclosure” test to this ease would require us to decide many novel questions of law, a fact the concurrence fails to acknowledge.
To begin, we would have to ask and answer what it means to be “circuit foreclosed.” In Mr. Prost’s view, of course, any argument on the meaning of “proceeds” in the money laundering statute was barred by an earlier Eighth Circuit decision holding that the term “proceeds” in the Racketeer Influenced and Corrupt Organizations Act (“RICO”) was not limited to the profits of illegal activity. But can a decision regarding one statute sufficiently “foreclose” a similar argument based on another? The concurrence disagrees with Mr. Prost and says no. But such an answer itself only raises another question: how much deference, if any, do we accord the Eighth Circuit’s view of its own precedent? After all, the Eighth Circuit appears to agree with Mr. Prost that its RICO precedent did preclude the reading of the money laundering statute later adopted in Santos. See United States v. Williams, 605 F.3d 556, 567 (8th Cir.2010). So to reach the result it advocates, the concurrence has to disagree with the Eighth Circuit’s reading of its own precedent. (The concurrence casts aside the problematic portion of the Eighth Circuit’s decision in Williams as “careless.” See Concurrence at 603 n. 2.)
Even if we could get past all that, still other novel questions remain to be decided under the concurrence’s approach. A prisoner seeking to satisfy the erroneous circuit foreclosure test must of course demonstrate that he is “actually innocent” under a new statutory interpretation issued by the Supreme Court. But what kind of showing of innocence is sufficient to invoke the savings clause? And on what record? The original criminal record? Or may the parties introduce new evidence now in the course of a habeas proceeding brought nearly a decade after conviction? The proper answers to these questions are far from clear.
Neither is even this the end of it. Confusingly, the concurrence doesn’t dispute that Mr. Prost’s favored novelty test, endorsed by the Ninth Circuit, is inconsistent with the statute and must be rejected by this court. And it can hardly be the case that judicial restraint allows the concurrence to disagree freely with two circuits (the Eighth and Ninth) while simultaneously requiring this court to suppress any note of respectful disagreement with another (the Seventh).
In the end, the concurrence’s claim to judicial restraint is simply unconvincing. Under its approach, the concurrence would have us bypass the question what Congress actually intended and apply the circuit foreclosure test without worrying about its provenance in the statutory text; handle plenty of knotty and novel legal questions about the test’s application, in the process creating a significant and entangling body of advisory law about a test Congress never authorized; disagree with the Eighth Circuit’s understanding of its own precedent; and still invite a separate schism with the Ninth Circuit. All this, despite the fact that the meaning of the savings clause and its application to this case are clear. Respectfully, when faced with the two possible paths presented to us by this case, we do not question for a moment that the easier, narrower, and far more judicially restrained course is for this court to apply faithfully the law Congress has written, not one it hasn’t. After all, it is the “duty of the judicial department to say what the law is,” Marbury v. Madison, 5 U.S. 137, 1 Cranch 137, 177, 2 L.Ed. 60 (1803) (emphasis added), not to develop a rococo jurisprudence about the application of a hypothetical law that Congress might’ve enacted — but clearly didn’t.
Worse still, after chiding this court for failing to assume-without-deciding the propriety of the erroneous circuit foreclosure test, the concurrence abandons the very approach it advocates. Indeed, toward the end of its opinion, the concurrence reveals that its primary purpose is to defend the merits of the erroneous circuit foreclosure test, doing so in depth and at length. See Concurrence at 603-06. Here the concurrence finally, if implicitly, acknowledges that its real difficulty is just one of substance, a good faith disagreement about the validity of the erroneous circuit foreclosure test. After all, it surely can’t be the case that the principles of judicial restraint the concurrence seeks to invoke in its opinion work only one way, requiring this court but not the concurrence to assume-without-deciding the propriety of the erroneous circuit foreclosure test.
What defense the concurrence does muster, however, is unpersuasive and serves only to confirm the correctness and comparative restraint of our approach. The concurrence doesn’t attempt to reconcile the erroneous circuit foreclosure test with the plain language of the savings clause or surrounding provisions. Or, for that matter, with the congressional purposes we’ve outlined above. Neither does the concurrence explain why we should privilege a petitioner who was foreclosed by circuit precedent over a petitioner whose challenge wasn’t yet recognized by the Supreme Court at the time of his initial § 2255 motion, the effect of adopting circuit foreclosure to the exclusion of the standard Mr. Prost and the Ninth Circuit advocate. Instead, the concurrence defends the erroneous circuit foreclosure test only on the basis that, even if “Congress failed to amend § 2255 expressly to permit” claims like Mr. Prost’s, it is essential to find a way to allow them to avoid “a miscarriage of justice.” Concurrence at 606.
Respectfully, this is less an argument for interpreting § 2255 than it is one for amending § 2255. Congress has expressed its views and purposes in § 2255 clearly and unequivocally. In § 2255, Congress has guaranteed every federal prisoner, after a trial and appeal, one additional adequate and effective opportunity to pursue any argument he wishes against his conviction or sentence, so long as it is brought within the applicable limitations period. In setting this rule, Congress has sought to balance the competing interests of vindicating the potentially innocent and providing a degree of finality to criminal convictions without pursuing either interest blind to the other. No doubt Congress could have struck a different balance than the one it did between these important ends. No doubt it might strike a different balance in the future. But unless and until Congress’s currently expressed balance can be said to violate the Constitution, a question (again) not presented in this appeal, it is the job of this court, respecting the principles of judicial restraint, to enforce Congress’s expressed purposes, not to replace them with our own. See Harrington v. Richter, — U.S. —, 131 S.Ct. 770, 780, 178 L.Ed.2d 624 (2011) (“Judges must be vigilant and independent in reviewing petitions for the writ, a commitment that entails substantial judicial resources. Those resources are diminished and misspent, however, and confidence in the writ and the law it vindicates undermined, if there is judicial disregard for the sound and established principles that inform its proper issuance.”); Lamie v. U.S. Trustee, 540 U.S. 526, 542, 124 S.Ct. 1023, 157 L.Ed.2d 1024 (2004) (“[I]t is beyond our province to rescue Congress from its drafting errors, and to provide for what we might think ... is the preferred result.” (internal quotation omitted)); John F. Manning, Textualism and the Equity of the Statute, 101 Colum. L.Rev. 1,18 (2001) (“Because statutory details may reflect only what competing groups could agree upon, legislation cannot be expected to pursue its purposes to their logical ends; accordingly, departing from a precise statutory text may do no more than disturb a carefully wrought legislative compromise.”).
The judgment of the district court is
Affirmed.
. Shortly after this decision, Congress amended the money laundering statute to define proceeds” more broadly as any property derived from or obtained or retained, directly or indirectly, through some form of unlawful activity, including the gross receipts of such activity.” See Pub.L. No. 111-21, § 2(f)(1)(B), 123 Stat. 1617, 1618 (2009), codified at 18 U.S.C. § 1956(c)(9). Of course, all parties concede that this case must be decided on the prior version of the statute, as interpreted by Santos. But it is worth noting that because Santos only applies to preamendment conduct, the number of potential cases like Mr. Prosts that might seek to invoke Santos is necessarily limited.
. "A second or successive motion must be certified as provided in section 2244 by a panel of the appropriate court of appeals to contain — (1) newly discovered evidence that, if proven and viewed in light of the evidence as a whole, would be sufficient to establish by clear and convincing evidence that no reasonable factfinder would have found the movant guilty of the offense; or (2) a new rule of constitutional law, made retroactive to cases on collateral review by the Supreme Court, that was previously unavailable.” 28 U.S.C. § 2255(h).
. Mr. Prost has moved to supplement the record on appeal with documents from his underlying criminal case. The government doesn’t oppose this motion and so we grant it. For its part, the government has filed its own motion to supplement the record, but Mr. Prost has opposed this motion, arguing that the government’s proffered materials are not necessary to the resolution of this appeal. We agree and deny the governments motion.
During the course of his lengthy legal proceedings, Mr. Prost has been released from prison and is currently serving concurrent terms of supervised release — three years on each of the money laundering counts and five years on the drug count. Thus, even if he were to succeed in reversing his money laundering convictions, his term of supervised release would not change because of his remaining conviction on the drug count. This fact, however, does not render his appeal moot. The Supreme Court has told us that a habeas petition challenging a conviction isn’t mooted by a prisoner’s release from incarceration because the Court is willing to presume” that the fact of conviction has continuing collateral consequences.” See Spencer v. Kemna, 523 U.S. 1, 7-8, 118 S.Ct. 978, 140 L.Ed.2d 43 (1998). So, for example, Mr. Prost’s money laundering convictions might be used to enhance his sentence for any future conviction. See, e.g., Minnesota v. Dickerson, 508 U.S. 366, 371 n. 2, 113 S.Ct. 2130, 124 L.Ed.2d 334 (1993). If Mr. Prost prevails, he may also seek recovery of a special assessment the sentencing court imposed on him as a result of his money laundering convictions. What’s more, jurisdiction attaches on the initial filing for relief, which here occurred when Mr. Prost was still incarcerated in Colorado. See Oyler v. Allenbrand, 23 F.3d 292, 293-94 (10th Cir.1994); Santillanes v. U.S. Parole Comm’n, 754 F.2d 887, 888 (10th Cir.1985).
. Whether the Constitution requires some avenue for attacking a federal conviction is a matter as yet undecided by the Supreme Court. The Constitution speaks of the writ of habeas corpus in the negative, forbidding Congress from suspending access to the writ unless when in Cases of Rebellion or Invasion the public Safety may require it.” U.S. Const, art. I, § 9, cl. 2. At a minimum, this provision protects against congressional infringements of the writ as it existed when the Constitution was drafted and ratified.” Boumediene v. Bush, 553 U.S. 723, 746, 128 S.Ct. 2229, 171 L.Ed.2d 41 (2008). At that time, however, [flederal prisoners could use the writ [only] to challenge confinement imposed by a court that lacked jurisdiction, ... or detention by the Executive without proper legal process.” McCleskey, 499 U.S. at 478, 111 S.Ct. 1454 (internal citation omitted). Still, the Court has sometimes assumed without deciding that the Suspension Clause affords convicted federal prisoners some avenue of collateral attack, see Felker v. Turpin, 518 U.S. 651, 663-64, 116 S.Ct. 2333, 135 L.Ed.2d 827 (1996), though it has never held this to be the case and at least one member of the Court has warned against adopting so expansive a reading, see INS v. St. Cyr, 533 U.S. 289, 341-42, 121 S.Ct. 2271, 150 L.Ed.2d 347 (2001) (Scalia, J., dissenting) (such a reading would become a one-way ratchet that enshrines in the Constitution every grant of habeas jurisdiction” by Congress, meaning that Congress would unconstitutionally suspend” the writ whenever it eliminates any prior ground for the writ that it adopted,” a result that leaves Congress with little incentive to extend the availability of collateral relief).
. The corollary statute of limitations for a state prisoner relying on a new right runs from the date on which the constitutional right asserted was initially recognized.” See § 2244(d)(1)(C) (emphasis added). By omitting the constitutional” modifier contained in § 2244(d)(1)(C) from § 2255(f)(3), Congress clearly contemplated § 2255 motions relying on new statutory interpretations.
. One might question why Congress chose to distinguish between claims based on newly discovered evidence or new constitutional rules, on the one hand, and claims based on new statutory interpretations, on the other. Perhaps Congress pursued this route because a claim based on a new statutory interpretation — though one type of factual innocence— doesn’t mean that a prisoner didn’t commit the acts for which he was convicted (as can happen in cases involving newly discovered evidence), or that his conduct was beyond the power of Congress to proscribe (as is true with many retroactive constitutional rules). In those cases involving new statutory interpretations, after all, the prisoner committed acts that a court of competent jurisdiction at that time believed to be criminal under the relevant statute. But whatever Congress’s intent, and even if one might prefer otherwise, Congress was free to legislate (as it did) that — after one round of collateral review— finality interests outweigh the interests in favor of (again) reopening final judgments to permit new statutory interpretation claims. Courts themselves have long distinguished between types of innocence claims, holding that only factual innocence may excuse a procedural default in the § 2241 context. See Bousley v. United States, 523 U.S. 614, 623, 118 S.Ct. 1604, 140 L.Ed.2d 828 (1998). Having created our own (if different) hierarchy of innocence claims, it’s hard to say Congress wasn’t entitled to enact its own — unless of course its particular hierarchy in some way can be said to violate the Constitution. See infra Section III.D.
. Our holding is confined to circumstances where Congress has not authorized a second or successive motion. We leave open the question to what extent the savings clause might have an additional role to play in those second or successive collateral attacks authorized by subsection (h), potentially guaranteeing an effective and adequate opportunity to test those (authorized) claims. The question might arise if, for example, a second collateral attack based on newly discovered evidence could for some reason not be brought in the sentencing court, even though § 2255(h)(1) would permit it. But this question we need not decide in this case, given that Mr. Prost’s present motion doesn’t satisfy subsection (h), as he himself concedes.
. Of course, in the decades following § 2255’s initial enactment Congress has sought to "impinge upon” federal prisoners’ abilities to bring successive collateral attacks under § 2255, most notably in its 1996 enactment of AEDPA, which included § 2255(h), along with its corresponding state cousin, § 2244(b).
. Mr. Prost notes that, in the § 2241 procedural default context, the novelty of an issue can provide "cause” for excusing a prisoner’s failure to raise on direct appeal the claim he presses on habeas. See Bousley, 523 U.S. at 622, 118 S.Ct. 1604. But here Mr. Prost gets ahead of himself. He can reach § 224 l’s judge-made equitable doctrine for excusing late-blossoming arguments only if he first meets the antecedent statutory requirements Congress prescribed in § 2255(e)’s savings clause. This, as we have explained, he cannot do.
. The concurrence notes that criminal defendants sometimes make the calculated decision to give up the right to challenge adverse circuit precedent when a relatively lenient plea deal is offered. Concurrence at 18 n. 6. But this fact has no bearing on the question whether the statutory remedial vehicle provided by § 2255 is inadequate or ineffective to test the adverse circuit precedent. It simply means that defendants who accept plea offers prefer to take the bird in the hand rather than chase one in the bush. Indeed, it can hardly be said that the incentives defendants face to accept a plea offer somehow render the foregone jury trial inadequate or ineffective to test guilt or innocence, yet that is precisely the logic the concurrence seems to rest upon.
. Outside the habeas context, as inside, the Supreme Court has held that adverse circuit precedent doesnt authorize courts of appeals to create out of whole cloth exceptions to duly enacted statutes or rules. In Johnson v. United States, for example, the Court rejected the Ninth Circuit’s attempt to create an exception to Fed.R.Crim.P. 52(b) and plain error review in cases where the defendant did not object to an instruction at trial because he faced a wall of adverse circuit authority. 520 U.S. 461, 117 S.Ct. 1544, 137 L.Ed.2d 718 (1997) (rejecting United States v. Keys, 95 F.3d 874 (9th Cir.1996) (en banc)). This attempt to invent exceptions, the Court explained, "skew[ed] the Rules careful balancing of [the] need to encourage all trial participants to seek a fair and accurate trial the first time around against [the] insistence that obvious injustice be promptly redressed.’ ” Johnson, 520 U.S. at 466, 117 S.Ct. 1544. Much the same might be said here: the difficulty of prevailing on a particular argument does not excuse the failure to make it in the first place.
. In Davenport, where the Seventh Circuit decided to strike off in a different direction and declined to follow at least the Second Circuits interpretive path, it apparently did so less because it objected to the legal analysis on which the Second Circuit rested and more because of what the Seventh Circuit called practical” objections. See In re Davenport, 147 F.3d at 611 (contending that the Second Circuit’s interpretation would not meet the needs of practical judicial enforcement”).
. The concurrence makes much of the fact that the government did not challenge the erroneous circuit foreclosure test before this court. But as the concurrence readily admits, the question presented by this appeal is whether the remedy provided by § 2255 is inadequate and ineffective to test the legality of Mr. Prosts conviction. Concurrence at 1. This opinion answers that question of law as it must and explains the basis for its result. It is hardly a frolic,” as the concurrence charges, for this court to hold and explain that the government’s view of the statute, like Mr. Prost’s, is in error. See Concurrence at 12. To the contrary, it is long settled that a partys position in a case (even when that party is the United States) does not dictate the meaning of a federal” statute. United States v. Charles, 576 F.3d 1060, 1066 (10th Cir.2009). See also United States Nat’l Bank of Or., 508 U.S. at 448, 113 S.Ct. 2173 (“[Tjhe Court of Appeals acted without any impropriety in refusing to accept what in effect was a stipulation on a question of law.”); Gardner v. Galetka, 568 F.3d 862, 879 (10th Cir.2009) ("It is one thing to allow parties to forfeit claims, defenses, or lines of argument; it would be quite another to allow parties to stipulate or bind us to application of an incorrect legal standard, contrary to the congressional purpose.”); Harsco Corp. v. Renner, 475 F.3d 1179, 1190 (10th Cir.2007) (same). Surely the concurrence cannot mean to suggest that this court is bound to apply a clearly erroneous reading of a statute just because the parties say we should.
. The Supreme Court has recently emphasized — repeatedly—that the courts of appeals must respect Congress’s statutory commands in AEDPA rather than replace Congresss stated purposes with their own, reversing no fewer than six appellate AEDPA decisions since 2010, many times summarily and unanimously. See, e.g., Harrington v. Richter, — U.S. —, 131 S.Ct. 770, 178 L.Ed.2d 624 (2011); Premo v. Moore, — U.S. —, 131 S.Ct. 733, 178 L.Ed.2d 649 (2011); Magwood v. Patterson, — U.S. —, 130 S.Ct. 2788, 177 L.Ed.2d 592 (2010); Renico v. Lett, — U.S. —, 130 S.Ct. 1855, 176 L.Ed.2d 678 (2010); Berghuis v. Smith, — U.S. —, 130 S.Ct. 1382, 176 L.Ed.2d 249 (2010); Thaler v. Haynes, — U.S. —, 130 S.Ct. 1171, 175 L.Ed.2d 1003 (2010).
. Though offering no textual, contextual, or purposive basis for its position, the concurrence, as a last resort, attempts to draw an equivalence between this case and Bousley v. United States, 523 U.S. 614, 118 S.Ct. 1604, 140 L.Ed.2d 828 (1998), and In re Davis, — U.S. —, 130 S.Ct. 1, 174 L.Ed.2d 614 (2009) (mem.). See Concurrence at 599-600, 600-01, 606. But the concurrence fails to mention that neither defendant in those cases sought to rely on the savings clause. Even more significantly, the concurrence also overlooks the markedly different petitions filed in those cases. In Bousley, the defendant was waging his first collateral attack under § 2255. For this reason, the only obstacle he needed to overcome was procedural default— a judicially created doctrine restricting the arguments available even in a first collateral attack. Mr. Prost, by contrast, must overcome a statutory bar — that is, the one Congress enacted in § 2255(h) — because he, unlike Mr. Bousley, seeks to pursue a second collateral attack. And unable to qualify for either of the exceptions Congress carefully crafted in subsection (h), Mr. Prost attempts to rely on § 2255(e)’s savings clause, a provision simply irrelevant to Mr. Bousley’s first § 2255 motion. Similarly, In re Davis dealt with a state prisoner’s petition filed directly with the Supreme Court, seeking to invoke that court’s original jurisdiction. In permitting such a claim to proceed, a concurrence joined by two Justices questioned whether AEDPA’s restrictions apply to such original habeas petitions. In re Davis, 130 S.Ct. at 1 (Stevens, J., concurring). Here, by contrast, it is undisputed that AEDPA does apply to Mr. Prost’s second collateral challenge filed in the district court. Moreover, to the extent In re Davis discussed claims of actual innocence, the Supreme Court suggested only that AED-PA’s provisions might be unconstitutional if they barred "relief for a death row inmate who has established his innocence.” Id. at 2 (emphasis added). Mr. Prost, of course, does not face the threat of execution, yet nonetheless, we too have left open the possibility that this circuit in a future case might permit a petitioner in Mr. Prosts position to invoke the savings clause for the constitutional avoidance reasons stated by the Second and Third Circuits. Bousley and In re Davis thus in no way aid the concurrences cause.