Everytime this piece of mental confusion gets re-uttered the 12 million illegal aliens already here grow bolder and more confident, and the 20 million that are thinking about coming across the border squeal with delight.
Until we try, we don't what we can do. Employing a variety of measures we can likely get rid of at least 80 percent of the problem.
We can't find Bin Laden. How are we going to find 12 million people who aren't trying to do anything more than live just like the rest of us?
There are murderers that we can't find, rapists, burglars, bank robbers. OJ can't find his wife's killer :->
It's not like there are 12 million people out their with little transponder chips that identify them as illegal immigrants. And all they needed was a half-decent birth certificate and they can get driver's licenses and social security numbers -- and after that they are indistinguishable from you and I (that is, if you and I were legal immigrants from mexico).
You can catch mice in your house if you give them something they want, like cheese.
You can "catch" the illegals already in the country if you give them a reason to be caught. Temporary worker program is something we can give them. A chance at citizenship is another thing you can give them.
If the only thing you offer is deportation, it's going to be hard to get them to give up. The I.D. program is a great idea in the long term, but it's not going to happen tomorrow. Border security can stop new people, but does nothing about those already here.
I didn't say it was impossible, I said it's not going to happen.
No President is going to deport of millions of people.