Premise: Many people are coming to this country for economic reasons. They're coming here to work. If you can make 50 cents in the heart of Mexico, for example, or make $5 here in America, $5. 15, you're going to come here if you're worth your salt, if you want to put food on the table for your families. And that's what's happening.
Hypothesis: Mexico is losing people to America in search of work.