US lawmakers have asked the Government Accountability Office to examine how face recognition technology is being used by companies and law enforcement agencies. The questioners: A group of Democrats from both the House of Representatives and the Senate sent a letter to the GAO asking to examine which agencies are using the technology, and what safeguards the industry has in place. Some form of government regulation could eventually be imposed. Eye spies: There is growing concern that unfettered use of facial recognition could enable greater government surveillance and automate discrimination. Some companies also appear concerned.