wjcofkc writes: A group of ISIS supporters have threatened to take down Facebook and Twitter, as well as their leaders. In a 25-minute propaganda video released by a group calling itself "the sons of the Caliphate army," photographs of both technology leaders are riddled with bullets. The video was first spotted by Vocativ. The threats are being made over the two companies' efforts to seek out and remove terrorist-related content on their respective platforms. The group is quoted as saying, "If you close one account, we will take 10 in return and soon your names will be erased after we delete your sites, Allah willing, and will know that we say is true."