Challenging ISIS has little to do with decreasing their number of Twitter followers.
The "Peer 2 Peer (P2P): Challenging Extremism" project, launched in spring 2015, is based on the premise that empowering student "experts" in reaching their peers was a critical strategy in efforts to combat extremist propaganda.
The Obama Administration has announced a new communications effort to counteract the “messaging” of ISIS. The new “Center for Global Engagement,” to be located at the State Department, will be charged with “counter-messaging” ISIS (ISIL) communications. The task of the center can be simply stated: to persuade those who might follow ISIS or other terrorist groups that following them is a very wrong idea.
On Friday, State Department officials announced that they would revamp their efforts to counter ISIS messaging online — among other ways, by opening a new “Global Engagement Center.” That same day, the President and various high-ranking members of the national security establishment met with representatives from Facebook, Twitter, YouTube, and other Internet powerhouses to discuss how the United States can fight ISIS messaging via social media.
Despite increasing efforts by western governments and social media providers to counter ISIS online, ISIS continues to produce and disseminate large quantities of ideologically inspired audio visual content and information.