Skilled Immigrants on Why They're Leaving the U.S.

A long wait for a green card, coupled with the soft U.S. economy, is prompting an exodus of some of the best and brightest

Lured by the prospect of climbing to the top of his field, New Delhi native Swaroop Ganguly came to the U.S. 10 years ago and earned a PhD in electrical and computer engineering from the University of Texas at Austin in 2005. He became an expert in an emerging technology called spintronics, used to power semiconductors, and worked at several chip companies, including Freescale Semiconductor. But Ganguly, now 32, is moving back to India this summer. Although he has been doing postdoctoral work at the University of Texas, he figures his prospects for research and professional development are probably better in his home country. "I feel quite excited about going back," he says.

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