1998), this court considered the interaction between § 2255’s savings clause and the newly-enacted limitations on successive § 2255 petitions, and we concluded that in most cases, petitions that were barred under the successive petition rules could not be brought under § 2241 either. To hold otherwise, we noted, would be to nullify the limitations on successive petitions. Id. at 608. Nevertheless, in Davenport we recognized that there might be rare circumstances in which the operation of the successive petition rules absolutely prevented the petitioner from ever having an opportunity to raise a challenge to the legality of his sentence. In such a case, § 2255 would be genuinely inadequate or ineffective to test the legality of his detention. Id. at 610-11. We believe that this is one of those exceptional cases.
The Davenport decision resolved two consolidated appeals, both from district court decisions holding that the appellants’ habeas corpus petitions were barred because they were in effect successive § 2255 petitions. The first appellant, Davenport, argued that his sentence was improperly enhanced on the grounds that he was an armed career criminal. Although Davenport had not made that argument in his direct appeals or in his first § 2255 motion, nothing in the relevant facts or law had changed since Davenport’s trial. This meant that Davenport had had an opportunity under § 2255, through his first petition, to raise his argument, even if he had procedurally defaulted that opportunity. In that circumstance, the court held, Davenport’s earlier failure to raise the point did not transform § 2255 into an inadequate remedy, despite the procedural bar on successive petitions and his current inability to raise this claim. Id. at 609. The second appellant, Nichols, was in a different situation. Nichols had been convicted of using a firearm during a drug offense in violation of 18 U.S.C. § 924(c). At the time Nichols was convicted and when he made his first § 2255 petition, the settled law in this circuit and almost everywhere else established that mere possession of a firearm was sufficient to prove “use” under § 924(c). However, after Nichols’s first § 2255 petition had been denied, the Supreme Court ruled in Bailey v. United States, 516 U.S. 137, 116 S.Ct. 501, 138 L.Ed.2d 472 (1995), that mere possession was insufficient to establish use; in Bousley v. United States, 523 U.S. 614, 118 S.Ct. 1604, 140 L.Ed.2d 828 (1998), the Court clarified that the Bailey rule applied retroactively to cases on collateral review. Therefore, Nichols had a strong argument, which he could not have made at the time of his first § 2255 petition, that he was imprisoned for a non-existent crime.
In spite of the compelling nature of this kind of claim, the wording of § 2255 made it clear that it was not one that could be raised in a successive § 2255 petition. That is because § 2255, ¶ 8, expressly restricts the grounds on which the court of appeals may grant permission to proceed with such a claim to two types: (1) newly discovered evidence, or (2) a new rule of constitutional law. Nichols had a claim “that he could at no time present in a motion under section 2255, nor earlier in his direct appeal.” Davenport, 147 F.3d at 610. For that reason, we held that § 2255 was inadequate to test the legality of Nichols’s conviction, the savings clause applied, and Nichols could pursue relief under § 2241. Id. at 610-11.
Garza’s situation is closely analogous to that of Nichols. In order to see why this is so, it is important to understand the precise nature of Garza’s claim. According to Garza (and we find this much of his point persuasive), the treaty on which he relies, the Charter of the Organization of American States, does not, standing alone, give rise to individual rights that would have been directly enforceable dur