"Mission: Impossible" showcases Tom Cruise in a fast-paced espionage thriller. Like all good spy flicks, the movie features the latest in high-tech innovations - in this case, biometrics.

Though Cruise's character coolly outwits biometric technologies such as eye scanning, voice verification, and computerized finger imaging, the reality is that biometrics is emerging as a fast, virtually foolproof means of personal identification.

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