Cambridge Analytica scandal: Facebook 'unclear' over what is done with user data

The researcher at the heart of the Facebook data breach scandal has accused the social network of being "unclear" about what it does with user information.Aleksandr Kogan was questioned by MPs on Tuesday over allegations that an app he developed allowed him to harvest information on Facebook users for Cambridge Analytica, a data firm hired by Donald Trump's presidential campaign.The app was developed before Facebook changed its policies in 2014, barring apps from accessing information on the fri