Facebook test warns users who may have seen 'harmful extremist content'

Facebook is testing new prompts to reach users who may be "becoming an extremist." The in-app messages, which Facebook has confirmed is a test, direct users to resources aimed at combating extremism. CNN first reported the new prompts, which have been spotted by Twitter users in recent days. One version is aimed at people who may know someone falling into extremism. "Are you concerned that someone you know is becoming an extremist," it reads. Facebook will also alert you if you've been exposed t...