One hears what a great contribution Mexican illegals make to America. Their rich cultural history; they pay taxes, they are hard working; they do jobs no one wants. Here are some numbers presented by Lou Dobbs last night. Mexican illegal aliens contribute 7 billion dollars to the US economy annually. They send 20 billion dollars to Mexico annually. They have depressed US wages by 20 billion dollars. The cost the American taxpayer 50 billion dollars annually for medical and social services. Hell of a deal isn't it?