I have an uncle that Retired from law enforcement years back. He would tell the story of them having to bring illegals back from time to time. They would drive to Mexico, drop them off, then stay the night and party in the border town. On the way home the next morning they would pass the guy up that they just dropped off. The illegal got back across the border before they did. We have to do something to keep them from coming across before any kind of amnesty can be granted.