How successful Facebook has been at finding and eliminating terrorist propaganda from its platform is still up for debate. Facebook and other social media companies were chastised by the British Parliament in a 2017 report for “failing to remove illegal content when asked to do so — including dangerous terrorist recruitment material, promotion of sexual abuse of children and incitement to racial hatred.” The report called the companies’ lack of enforcement shameful. Last week, the Counter Extremism Project, a nonprofit that combats extremist groups, also said it had found accounts of some extremists that remained active on Facebook.