Media playback is unsupported on your device Fake news: Should we know how to spot it?
7 April 2017 Last updated at 11:25 BST
For years Facebook have insisted that they are a mere platform for communication – in other words, that they are not to be held responsible for what's on the site, whether it's terrorist propaganda, child abuse images or 'fake news'.
Is that beginning to change? Facebook has announced it's going to help people spot the difference between what they call "false news" and what's true, or at least fair comment.
Facebook's director of policy in Europe, Richard Allan, told the Today programme people's newsfeed is made up of stories from sources they have chosen to follow.