Web as Weapon: Internet as a Tool for Violent Radicalization and Homegrown Terrorism (Part 1 of 2) Committee on Homeland Security, Subcommittee on Intelligence, Information Sharing, and Terrorism Risk Assessment. WITNESSES: Dr. Bruce Hoffman, Professor, Georgetown University; Ms. Rita Katz, Director, SITE Institute; Ms. Parry Aftab, Internet Attorney; Mr. Mark Weitzman, Director, Task Force Against Hate, Simon Wiesenthal Center. Video provided by U.S. House of Representatives. Discussion held on 071106. Originally uploaded by House.Resource.Org on 14 November 2011