Robertson, Adi (March 15, 2019). "Questions about policing online dislike are considerably even bigger than Facebook and YouTube". Timberg, Craig Harwell, Drew Shaban, Hamza Ba Tran, Andrew Fung, Brian (March 15, 2020). "The New Zealand shooting shows how YouTube and Facebook spread loathe and violent photographs - nevertheless again". Bennett, Brian (December 12, 2010). "YouTube is letting users choose on terrorism-related videos".