Has Facebook profited from fake news?
Media playback is unsupported on your device
Video

Has Facebook profited from fake news?

BBC Panorama's Darragh MacIntyre presses the social media giant.

Watch Panorama on BBC One at 19:30 BST on 8 May 2017. It will be available shortly after on BBC iPlayer

Go to next video: How do fake news sites make money?