CNN News:旧金山成为首个禁用面部识别技术的美国城市

Despite being one of the most technologically savvy cities in America, San Francisco is banning its government from using facial recognition technology. It's the first city in the U.S. to do that. Facial recognition systems are becoming more and more popular. They're used at police departments, concert venues, homes, stores and schools. They're even used on some smartphones. The technology allows computers to compare facial features caught on camera with the features of faces stored in a database and those may include mug shots of suspects or criminals. People who support the use of this technology say it can help prevent crime and make communities safer. People who oppose it say it's not always accurate and it could be abused to track people when they're out in public.

San Francisco's police department doesn't currently use facial recognition technology, but the new rule will forbid that in the future. And as far as the surveillance technology that's already in place goes, police will have to get permission from the city before they can use that. There are exceptions to the new law. The technology will be allowed at San Francisco International Airport and at the Port of San Francisco. And businesses and homes that have cameras installed will still be allowed to use those, in fact police could still use information from these private cameras in a criminal investigation.