How the Police Use Facial Recognition, and Where It Falls Short

After a high-speed chase north of Orlando, Fla., sheriff's deputies punctured the tires of a stolen Dodge Magnum and brought it to a stop. They arrested the driver, but couldn't determine who he was. The man had no identification card. He passed out after stuffing something into his mouth. And his fingerprints, the deputies reported, appeared to have been chewed off.