Except some manage to create false documentation that secures them employment in nuclear facilities apparently. I'm not at all confident documentation will be closely checked. IMO, it's no more than a "save face" measure and they'll not look too closely deliberately.
I'm personally insulted more than outraged over this. I expect D.C. to sell us amnesty no matter the desires of the public. Why blow a fuse? As others are over the expected. Not good for my blodd pressure. :-)
But to insult mine and others intelligence so obviously? Tells me a great deal of how they view the public as being gullible.
I had a friend from Canada who was trying to get a green card. INS is able to determine whether documents are fake. The burden will be on the applicant to prove residency. If they can't they will have to go back.