And when they don't have their guest worker card, they will deported and what is wrong with trying to document these people, I think it is a great idea.
Look this problem has been festering for 40 years and 8 million people are not going to be deported, JMO it is better to use a carrot to document the hardworking ones doing honest jobs(such as dishwashers etc.etc) and leave the rest of the resources to find the bad guys.
It is not necessary to deport 8 million, just put the employers in jail, get rid of the anchor babies, and don't give them welfare. They'll deport themselves. Why are you trotting out all of these talking points? You sound like a rat or an administration official.