The Department of Defense is issuing AI ethics guidelines for tech contractors

In 2018, when Google employees found out about their company's involvement in Project Maven, a controversial US military effort to develop AI to analyze surveillance video, they weren't happy. "We believe that Google should not be in the business of war," they wrote in a letter to the company's leadership. Around a dozen employees resigned. Google did not renew the contract in 2019. Project Maven still exists, and other tech companies, including Amazon and Microsoft, have since taken Google's place.