Arce-Vences v. Mukasey, 512 F.3d 167 (5th Cir. Dec. 21, 2007) ("Arce's conviction for possession [of between 50 and 2000 pounds] of marijuana is not an aggravated felony. Commission of an aggravated felony was the sole charge on which he was ordered removed. Because, in the light of Lopez, we hold that Arce's conviction for possession of marijuana is not an aggravated felony, we vacate his order of removal.").