The Pentagon has a laser that can identify people from a distance—by their heartbeat
By: Technologyreview Jun 24, 2019 Everyone’s heart is different. Like the iris or fingerprint, our unique cardiac signature can be used as a way to tell us apart. Crucially, it can be done from a distance. It’s that last point that has intrigued US Special Forces. Other long-range biometric techniques include gait analysis, which identifies someone […]