United States v. Byun, 530 F.3d 1139 (9th Cir. Jul. 1, 2008) (federal conviction for importation of a noncitizen for purposes of prostitution, in violation of 8 U.S.C. 1328, where the plea agreement indicates that the victim was a minor, requires the defendant register as a sex offender under 42 U.S.C. 16911).