487 bytes added
, 23:58, June 15, 2007
Illegal aliens are people who immigrate into a country without having proper documentation or approval by the country in question. In the United States, many illegal aliens are Mexicans who cross the southern border illegally. Although Mexicans make up the majority of illegal aliens, there are also serious problems with foreign students who come to this country on Student Visas and stay beyond the duration of their visa. This is how one of the 9/11 terrorists entered the country.