Zuck Explains Facebook To Congress Mark Zuckerberg's testimony on Capitol Hill proves once and for all that there is such thing as a stupid question. Subscribe To "The Late Show" Channel HERE: ... Why is Facebook in trouble? (CNET News) A whistleblower at data analytics company Cambridge Analytica says the UK firm received more than 50 million Facebook user profiles without user consent and ... You Posted That on Facebook? Ellen has been on her audience's Facebook pages again! She's found some hilarious and embarrassing photos that she couldn't wait to show her audience, ... Facebook The official channel of Facebook on YouTube.