Immigration & Naturalization Service v. Abudu , 108 S. Ct. 904 ( 1988 )
Jian Lian Guo v. John Ashcroft, Attorney General of the United States , 386 F.3d 556 ( 2004 )
Zheng v. Attorney General of the United States , 549 F.3d 260 ( 2008 )