Whether petitioner is entitled to seek federal habeas corpus relief under 28 U.S.C. § 2241

QUESTION PRESENTED FOR REVIEW 1. Whether petitioner is entitled to seek federal habeas corpus relief under 28 U.S.C. § 2241 on the ground that 28 U.S.C. § 2255 is "inadequate or ineffective" to allow him to raise a claim that an intervening and retroactively applicable decision establishes that the district court erroneously imposed a mandatory minimum sentence of fifteen years imprisonment? ° 7 Li .