The city of Moscow is tracking people with coronavirus. The facial recognition technology is helping them to identify people who should be in quarantine but have left their homes or hotels. About 2,500 people who flew to the city from China have been ordered to stay inside. The technology is…

Facial recognition surveillance is set to transform the way cities keep people safe. Moscow is an extraordinary example of this change. Cameras controlled by artificial intelligence help to identify potentially dangerous individuals on Metro trains. And surveillance programs are being expanded. Recent estimates suggest that more than 200 million cameras will ultimately…