This is the May 7, 2015 hearing titled, "Jihad 2.0: Social Media in the Next Evolution of Terrorist Recruitment," held before the U.S. Senate Committee on Homeland Security and Governmental Affairs. From the opening statement of Tom Carper, U.S. Senator from Delaware, who discusses the evolution of the threats the US has faced after the September 11, 2001 attacks: "Groups like ISIS [Islamic State in Iraq and Syria], Al-Shabaab, and al-Qaeda in the Arabian Peninsula have used social media and online propaganda to spread their call to extremists here in America and around the world to carry out their own attacks against us. Moreover, ISIS has seemingly perfected the ability to use social media to lure Western recruits to Syria for training. These new tactics mean that we can no longer rely solely on our ability to use military force to eliminate a terrorist threat. [...] Today we will begin to examine the narratives put forward by these terrorist groups over social media and also how those narratives are being used to influence vulnerable individuals here and in other Western countries. And we will look for common-sense solutions that our government, along with other governments with whom we are allied, can employ to counter these groups' narratives and to eliminate this tool from the terrorists' toolbox." Statements, letters, and materials submitted for the record include those of the following: Peter Bergen, J.M. Berger, Mubin Shaikh, and Daveed Gartenstein-Ross.