ns. (8 U.S.C. ?? 1101(a)(15).) ???Nonimmigrant aliens??? are, in general, temporary visitors to the United States, such as diplomats and students who have no intention of abandoning their residence in a foreign country. (8 U.S.C. ?? 1101(a)(15)(F), (G); Elkins v. Moreno (1978) 435 U.S. 647, 664-665 [55 L.Ed.2d 614, 627-628] [under pre-1996 law, held the question whether nonimmigrant aliens could b