Carole Cadwalladr: Facebook's role in Brexit -- and the threat to democracy | TED Talk
https://www.ted.com/talks/carole_cadwalladr_facebook_s_role_in_brexit_and_the_threat_to_democracy‘I made Steve Bannon’s psychological warfare tool’: meet the data war whistleblower | News | The Guardian
https://www.theguardian.com/news/2018/mar/17/data-war-whistleblower-christopher-wylie-faceook-nix-bannon-trump