"In the hours after the massacre played out on Facebook, the video was copied and re-uploaded hundreds of times to Facebook, YouTube, and Twitter. The tech giants say they are working hard to stop the video being shared, but it's still easily searchable on all platforms more than 12 hours after the attack. Critics say the massacre is the latest failure of tech platforms to deal with the spread of extremist content on their networks. "It is not actually difficult once you identify a video, you can hash it, and you can prevent any video from being re-uploaded and disseminated online. It rings hollow. I don't believe them, I don't believe that they are really making an effort to remove this horrific content,' Lucinda Creighton, a senior adviser at the Counter Extremism Project, an international policy organization, told VICE News."