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.