Like BCB said about punishing companies that hire illegals, we cant really because most of them work on farms and stuff of that nature. Its really hard to track since they pay them cash and there arent records of any form to prosicute them with. Plus, if they dont do the work, who will? Americans are lazy and wont do it. Almost everyone that is unemployed thinks they are too good to pick vegitables and fruit for work. I really cant think of anything that can stop them. The world is becoming to global. Before too long, you wont be a US citizen, you'll be a "North American" citizen or a "European" citizen. Stuff of that nature. It'll be after we die, but thats still relativly soon in history.