Behold the Body Biometric

Before long, we may use fingerprints, iris scans, and voice recognition to log onto computers, buy groceries -- even when picking up kids from school

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This could be you: At a convenience store, a scanner reads your fingerprints and deducts the price of a coffee and doughnut from your checking account. Once at the office, your employer uses software to monitor the rhythm of your typing or a Webcam to measure the proportions of your face before letting you onto the network. Your call to customer service won't go through until you're identified by the cadence of your voice.

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