Photos: Biometrics up close and personal 
Published: 27 Mar 2006 17:40 BST
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The fingerprint reader did not initially capture an acceptable image. "It works better if you put sweat on your fingers," said Bataller. "Biometrics enable more automation through immigration, as you can be scanned by a machine. If the machine is not able to identify you, then you can be interviewed by a human."
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