Valderrama-Fonseca v. INS, 116 F.3d 853 (9th Cir. June 24, 1997)(failing to reach argument that the Immigration Judge committed reversible error by basing removal upon a conviction that had been expunged pursuant to the Federal Youth Corrections Act, 18 U.S.C. § 5021(b), since respondent had failed to present it first to the BIA), citing Rashtabadi v. INS, 23 F.3d 1562, 1567 (9th Cir. 1994).