Here's a comment on Gingrich's plan:
Gingrich's Immigration Plan Could Benefit Millions, Study Finds, by Julia Preston, New York Times December 01, 2011
Yes, that’s the problem. The Pew Hispanic Center has run the numbers and says that maybe 3.5 million illegals could be made legal by the Gingrich plan. That would be good for them, and for their employers, but not for America. Suggested alternative headline: Gingrich's Immigration Plan Could Benefit Millionaires.