I just thought of something... Given the facts that the US is a "safety valve" for social strife in Mexico, and I also believe that money sent home to Mexico from illegal aliens in the US is either the second or third greatest source of income for the Mexican economy.
What happens if Mexico were to close the border, and tell us that they don't want their people back?
Mark
We'll slap a uniform on'em, give them $100, and send them to Iraq. We'll call it "Surge II".