In China, a high-tech plan to track people
 

*Source: News.com (http://news.com.com/In+China%2C+a+hi...tag=nefd.top)*
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SHENZHEN, China-- At least 20,000 police surveillance cameras are being installed along streets here in southern China and will soon be guided by sophisticated computer software from an American-financed company to recognize automatically the faces of police suspects and detect unusual activity.

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