The civil-liberties group Electronic Frontier Foundation obtained the locations of cameras used across San Francisco as the city contemplates its use of surveillance technology.

The state assembly narrowly failed to pass a bill that would have permitted unprecedented use of drones over both public and private gatherings.

"Facial recognition in American communities threatens freedom," the organization says of Amazon's Rekognition platform.

New survey data shows a public that is conflicted about how law enforcement adopts new technologies like body-worn cameras and online crime reporting tools.

Civil liberties groups contend the technology could violate the privacy of anyone with a mobile phone who passes by.

City officials have stopped all city-run drone flights from the drone manufacturer DJI after concerns sensitive information would fall into Chinese hands.

New software will track passersby at gas stations to build on a program that police say is already reducing crime.

Through work with industry and government partners, local public safety agencies launched a 40-camera system at zero project cost to the city.

Singapore's clean streets and smart city initiatives are closely tied to its widespread surveillance network.