A Nuclear Iran: Challenges and Responses HEARING before the COMMITTEE ON FOREIGN RELATIONS UNITED STATES SENATE ONE HUNDRED NINTH CONGRESS SECOND SESSION Thursday, March 2, 2006 Time: 10:30 AM Place: 419 Dirksen Senate Office Building Presiding: Senator Lugar Senator Lugar's Opening Statement Senator Biden's Opening Statement Witnesses: The Honorable Ronald F. Lehman, II    Director    Center for Global Security Research    Lawrence Livermore National Laboratory    Livermore, CA Dr. Patrick Clawson    Deputy Director for Research    The Washington Institute for Near East Policy    Washington, DC Dr. Ray Takeyh    Senior Fellow for Middle Eastern Studies    Council on Foreign Relations    Washington, D.C.   Witness names in blue are links to the statement given. Statements are only posted if provided electronically by witness.