"The proposal opens the door wider than ever before to high-skilled immigrants. It would offer permanent-resident status, with a document known as a green card, to every foreigner with an advanced degree in science or technology from an American university. It would make it much easier for foreign students in the sciences to stay in the United States after they graduate, and eliminate numerical restrictions that have kept highly educated immigrants from India and China waiting for many years before becoming residents."

NYTimes 

http://www.nytimes.com/2010/05/01/us/politics/01immig.html?hp