Testimony before the U.S. Senate Committee on Homeland Security and Governmental Affairs on The Internet: A Portal to Violent Islamist Extremism, 3 May 07:

Michael S. Doran, Deputy Asst Secretary of Defense for Support for Public Diplomacy

LTC Joseph H. Felter, Director, USMA Combating Terrorism Center

Frank J. Cilluffo, Associate VP for Homeland Security, Director, Homeland Security Policy Institute, GWU