MIT Technology Review reports, the Pentagon has developed a laser that can identify people — from a distance — by their heartbeat.

Our unique cardiac signature can be used as a way to tell us apart even from a distance. The Jetson prototype can pick up on a unique cardiac signature from 200 meters away, even through clothes and claimed to achieve over 95% accuracy under good conditions, and this might be further improved.

it’s likely that initially this new technology would be used alongside facial recognition or other identification methods.

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