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No. Biometrics is a broad term that covers a broad range of technologies. While they are all related in that they try to match a human being with one they've seen before, there is no synergy between them. Asking which will be the market leader is like asking if the next generation of cell phones will displace HDTV. There are a number of broad forms of biometrics that include fingerprint scanners, voiceprint matching, hand-geometry scanners, facial geometry scanners, iris scanners and retinal scanners Since Sept. 11, there has been a lot of discussion on the applications of biometrics. Everything from ID cards with biometric data in them, to using biometric scanning of crowds to look for known bad guys. There are a lot of places where biometrics are good to use and places where they are not good. They're marvelous things to use when used properly, but when used improperly, they're worse than useless. Unfortunately, the most obvious uses that we think of are the ones that are the least useful. This was true before Sept. 11 and is just as true now. Here are some reasons why:
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