File photo dated 09/05/15 of a man using YouTube, as Mayor of London Sadiq Khan urged the site to step up efforts to remove extremist content after it refused to take down four violent videos, flagged by concerned police, showing gang members threatening rivals and describing killing methods.

Internet Platforms Like Facebook Should Be Fined If They Don't Remove Extremist Content, Policy Exchange Says

Social media networks accused of saying ‘fine words’ on issue but not doing enough about it.
19/09/2017 06:10 SAST