Perhaps I just missed it, but what exactly is the national security threat here on par with, oh I don't know, terrorists crashing planes into the WTC, Pentagon, and White House on 9/11?
Oh please, figure it out.
Our porous borders are easy entry points not only for lettuce pickers, but for unknown entities who migrate from other countries to Central America.
There's a big business in transporting these individuals from Cent/Am to the Mexican border with the rest of the lettuce pickers.
These people have "plans" but not to pick lettuce.
Boy, you're slipping. 42 posts on an illegal alien thread before you come crashing in apologising for the "immigrants".