Opinion: Worried about how facial recognition technology is being used? You should be

If you're worried about how facial recognition technology is being used, you should be. And things are about to get a lot scarier unless new regulation is put in place. Already, this technology is being used in many U.S. cities and around the world. Rights groups have raised alarm about its use to monitor public spaces and protests, to track and profile minorities, and to flag suspects in criminal investigations. The screening of travelers, concertgoers and sports fans with the technology has also sparked privacy and civil liberties concerns.