Here's how it works. A face shot is submitted to a facial recognition system, which measures distinctive characteristics such as the width of nose and depth of eye sockets.

State officials currently use facial-recognition software that pulls photos from open sources like news stories and public social-media accounts.

A small group of people gathered at Citi Field to protest the use of facial recognition in some ticketing.

Face recognition is rapidly proliferating as a way to identify people at airports and in high security scenarios—but it's far from foolproof.

Most departmental searches are done via the Northeast Ohio Regional Fusion Center, an interagency intelligence group. The center’s policy on facial recognition, is one of just a few in the area.

Iran to use facial recognition to identify women without hijabs Iranian official says algorithms can identify anyone flouting dress codes.