Cervantes-Chavez v. United States; Chico-Najera v. United States; De La Rosa-Vargas v. United States; Hernandez-Salazar v. United States; Olivares-Aguirre v. United States; Orozco-Tarin v. United States; Ponce-Avillas v. United States; and Ramirez-Alvarado v. United States, 535 U.S. 945