Facebook's crackdown on dangerous content in groups could backfire, experts say

Critics say 'proactive' approach could make questionable content harder to detect

Facebook is changing its rules on private groups amid growing criticism that some closed communities on the platform are uniting extremists and spreading fake news.

The company announced in a blogpost on Wednesday that it would take a more "proactive" approach in detecting problematic content in groups and will work to enhance transparency surrounding them.