Because, as George F. Will wisely denounces, U.S. policy favors the opposite: American campuses award foreigners doctorates and then kick them back to their homelands or to Europe. Look at the stats:
Two-thirds of doctoral candidates in science and engineering in US universities are foreign-born. But only 140,000 employment-based green cards are available annually, and 1 million professionals are waiting (often five or more years) for cards.
Congress, any chance you might get your act together on this and color these value-added applicants’ cards green? Our economy could use the resulting surge, and these valuable professionals deserve the rewards of working among us.