Artificial intelligence can recognize you by the way you walk

Airport lines are the worst, no matter how early you arrive. You've got to check your bags, then go through the necessary security and ID checks, and you're usually waiting in line for most of them. The emergence of artificial intelligence may speed that whole process by eliminating at least one of those types of queues. Researchers have discovered one way to effortlessly and passively identify a person with increased accuracy. Unfortunately, the system can also be used for spying on people. Fou...