The Prime Minister has voiced her concerns over suggestions that a British firm has been exploiting data obtained on Facebook. The social media network has seen its share price plummet following reports from Channel 4 News that Cambridge Analytica used the personal information of millions of users in an attempt to sway the US Presidental election. Report by Chulanin. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
