http://www.sfgate.com/cgi-bin/article.cgi?file=/c/a/2003/05/20/MN263116.DTL Iris scanners, facial-recognition gadgets, fingerprint readers and other biometric gizmos may play important roles in guarding America's borders, the San Francisco Chonicle says. But some biometric technology used to identify individuals based on their biological traits has foundered because of its cost . . .
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