I wonder about the sanity of the person who would ask such a dumb question. All we have to do to stop the illegal flow is to make it unlawful (Oops! already is) to hire an illegal. Then, pass laws to make it illegal to rent to an illegal, let an illegal get utilities or buy transportation. Make it very expensive to break these laws. If they can't get work, food, autos, free medical care and Anchor baby status, they will leave and then the welfare (able bodied) receipients would become fruit pickers and tator diggers. The writer, I'm replying to, should ask himself, "How does Mexico stop illegal imigration"? They don't have millions of illegals. They have the balls to deal with the issue before it becomes a problem.