Drain Clogged: US curbs foreign brain influx ignoring achievements

Silicon Valley has long been the world's leading hub for high-tech business - a reputation largely down to an influx of foreign entrepreneurs. But this global symbol of enterprise could soon be in danger, with the US growing evermore reluctant to welcome new talent from abroad. RT LIVE http://rt.com/on-air Subscribe to RT! http://www.youtube.com/subscription_center?add_user=RussiaToday Like ...