Facebook CEO Mark Zuckerberg listens while testifying before a joint Senate Judiciary and Commerce Committees hearing regarding the company's use and protection of user data, on Capitol Hill in Washington, U.S., April 10, 2018. During nearly five hours of questioning by 44 U.S. senators, Zuckerberg repeated apologies he previously made for a range of problems that have beset Facebook. (Photo: China News Service/Deng Min)
