Congress April 10, 2018 11:22 am ‘I'm Responsible': Zuckerberg's Opening Statement to Congress Facebook CEO Mark Zuckerberg appeared before Congress Tuesday to testify about user privacy and nefarious uses of the social media platform. US & World Videos 1:45 NYPD enters Columbia University in riot gear to clear protest 4:28 ‘Apples Never Fall' and ‘Jurassic Park' star Sam Neill reveals his real name 3:21 Katy Perry's surprising regret about cheeseburger Met Gala look 1:01 Biden administration plans to reclassify marijuana as a Schedule III drug 2:28 King Charles returns to public duties amid cancer diagnosis