A Soldiers Blog

MATCHING UP CHARACTERISTICS
Biometrics — the measuring of physical human features — ensure that a person, once registered, can be identified later, even if his or her identity documents or facial characteristics change. The process involves capturing and matching unique whorls on a fingerprint, vibrations of a vocal cord or patterns in an iris — considered the most reliable.
Stored in a central database, the biometric files get searched for a match each time they’re queried by, say, an immigration inspector at Miami International Airport or an FBI agent poring over a crime scene.
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