| The joint Senate hearing with Facebook CEO Mark Zuckerberg is off and running. Updated at 2:55 p.m.
Zuckerberg, as witness, is expected to be grilled by members of both the Senate Judiciary and Commerce committees about the protection of user data after revelations in recent weeks that millions of users′ information were obtained improperly by Cambridge Analytica.
Here’s the Facebook hearings in photos:
A news photographer sets up a remote camera in the well of the hearing room before the start of the Senate Commerce, Science and Transportation Committee and Senate Judiciary Committee joint hearing on “Facebook, Social Media Privacy, and the Use and Abuse of Data.” on Tuesday. (Bill Clark/CQ Roll Call) Cutouts of Facebook CEO Mark Zuckerberg appear on the East Lawn of the Capitol ahead of his testimony on Tuesday before a joint Senate hearing on the protection of user data. The group Avaaz set up the display to call on Facebook to delete fake accounts. (Tom Williams/CQ Roll Call) Chelsea Hornick-Becker sets up a display of Facebook CEO Mark Zuckerberg cutouts on the Capitol lawn. (Tom Williams/CQ Roll Call) Facebook CEO Mark Zuckerberg arrives for his meeting with Sen. Bill Nelson, D-Fla., in the Hart Senate Office Building on Monday. Zuckerberg is on Capitol Hill to testify before the House and Senate this week. (Bill Clark/CQ Roll Call) Zuckerberg boards an elevator after meeting with Sen. Dianne Feinstein, D-Calif., in the Hart Senate Office Building on Monday. (Bill Clark/CQ Roll Call) Zuckerberg arrives on Monday. (Bill Clark/CQ Roll Call)