FOX NEWS: US military's 'Jetson' laser can ID your unique heartbeat hundreds of feet away

US military's 'Jetson' laser can ID your unique heartbeat hundreds of feet away



The U.S. military could soon spot you in a crowd — not by your face or your gait, but by your unique heartbeat rhythm. The Pentagon recently developed and tested a laser that can scan and distinguish the pitter-patter of your heart from up to 650 feet (200 meters) away.