I like Carlos Mencia. He's funny. He said:
"Want to know when you should start worrying about America? When Mexicans stop coming."
He also apparently is the origin of the suggestion that the INS start hiring the migrants they catch crossing the border to work as border guards, on conditional work permits tied to productivity – i.e. if they can't keep people out, they will get deported. This will solve the problem three ways to Sunday, and probably be cheaper than the way it's done now, given the low wages these workers could be paid. [remember, this is a joke].