must shot some evidence of having resided in the United States since 1982. They may work in the United States and are eligible for all federal assistance programs after five years.
Nonimmigrant (also "nonresident legal aliens"). Over 33 million people are awarded visas to enter the United States for pleasure and business. Time limits are placed on these visas, usually by stamping a passport. Additionally, students, temporary workers and trainees, transient aliens, and foreign officials are eligible for temporary visas.
the United States is a free and prosperous society with more than 5,000 miles of borders (2,000 with Mexico) and hundreds of international air and seaports. In theory, asovereign nation should be able to maintain secure borders, butin practice the United States has been unwilling and unable to do so. Estimates of illegal immigration vary wildly, from the official U.S. government estimate of 400,000 million per year (about 40 percent of the legal immigration), to unofficial estimates ranging up to 4 million per year. The government estimate that about 4 million illegal immigrants currently reside in the United States; unofficial estimate range up to 15 million or more. Many illegal immigrants slip across U.S. borders or enter ports with false documentation, while many more overstay tourist or student visas.