Here's why Facebook's 'fake news' plan is doomed to failure

Facebook warn users in 14 countries about sharing content without knowing its origin

Fake news has become an important focus for news foundations, democratic interest groups and various journalism academics and researchers, following claims that the US presidential elections may have been influenced by anti-Clinton propaganda created by Russia and shared on social networks.

In recent weeks there has been a concerted effort by news organisations and social networks to combat the proliferation of so-called “fake news” online.

Facebook recently announced a three-day campaign to warn users in 14 countries about sharing content without knowing its origin. The notice: “Tips to Spot False News” advised users