Phys .org: Facebook, Twitter, YouTube pressed over terror content Facebook, Twitter, YouTube pressed over terror content. “Terrorists and hate groups continue to get their propaganda onto social media platforms despite efforts by Facebook, Twitter, and YouTube to shut them down, a US Senate panel heard Wednesday. Islamic State, Al Qaeda, and others have stepped up their use of bots and other methods to fight the artificial intelligence and algorithms the social media giants deploy to screen them out. In addition, they are now turning to smaller platforms and messaging apps with encryption and less ability to police users, like Telegram, Reddit and WhatsApp, though none have offered yet the previous broad reach that Facebook and YouTube have had.”