Previous to the 2016 Olympics (and the thousands of holiday makers it’ll draw), military police in São Paulo and Rio de Janeiro are testing glasses topped with cameras in a position to scanning crowds for criminals. The camera analyzes 46,000 biometric points on as much as 400 faces per second — data that then gets compared with a database of as much as 13 million people. If a mug happens to compare a wanted person or known troublemaker, a red light will appear on a small screen connected to the glasses. And, in a twist particularly befitting Robocop, the glasses may be calibrated to zoom in from 12 miles away, though they’ll typically be used to administer crowds at a far more personal 50 meters (164 feet). For now, local cops will use them to tame crowds (and sure brawls) at soccer matches or even concerts, but hope to eventually monitor those crowded marathon routes. As for us, we’re all types of curious. Where do those hundreds of thousands of faces come from — Santa’s naughty and nice list? What if people wear masks? Or sunglasses at night?
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