-07/29/10
William Fitzgerald, Deputy Assistant Secretary, Bureau of African Affairs
-07/22/10
Harold Hongju Koh, Legal Adviser of the Department of State
-07/19/10
Paul Weisenfeld, Haiti Task Team Coordinator, USAID
-07/15/10
David Sandalow, Assistant Secretary of Energy for Policy & International Affairs
-07/14/10
Dr. Reuben Brigety, Deputy Assistant Secretary, Bureau of Population, Refugees and Migration
-07/02/10
William Kilmartin, Director of Megaports Initiative
-06/18/10
Jerry Hagstrom, Senior Editor, National Journal
-08/09/10
Bill Burns, Under Secretary of Political Affairs
-06/07/10
Robert Blake Jr. , Assistant Secretary for South and Central Asian Affairs
-05/19/10
David Lublin, Professor of Government, School of Public Affairs, American University
-05/27/10
General James L. Jones, National Security Advisor
-05/27/10
Cristián Maquieira, Chair, International Whaling Commission
-05/10/10
Ambassador Richard Holbrooke, U.S. Special Representative for Afghanistan and Pakistan
-04/30/10
William E. Kennard, U.S. Ambassador to the European Union
-04/23/10
Ambassador Michael Battle, U.S. Ambassador to the African Union
-04/20/10
Ellen Tauscher, Under Secretary for Arms Control and International Security
-04/19/10
Secretary of Labor Hilda Solis and Sandra Polaski, Deputy Under Secretary for International Labor Affairs
-04/07/10
Dr. James N. Miller, Principal Deputy Under Secretary of Defense for Policy
-04/01/10
Robert O. Blake, Assistant Secretary for South and Central Asian Affairs
-03/30/10
Cheryl Mills, Counselor and Chief of Staff to Secretary Clinton
-03/29/10
James Steinberg, Deputy Secretary of State
-03/26/10
Daniel Weinberg, Assistant Director, Decennial Census Programs, U.S. Census Bureau
-03/25/10
Admiral Robert Willard, Commander, U.S. Pacific Command
-03/24/10
Dr. Mathew Burrows, Counselor to the National Intelligence Council
-03/19/10
Arturo Valenzuela, Assistant Secretary of State for Western Hemisphere Affairs
-03/19/10
Donald Ritchie, Chief Historian of the Senate Historical Office
-03/16/10
David J. Johnson, Section Chief, Violent Crimes Section, Criminal Investigative Division
-03/15/10
Shaun Donovan, Secretary of Housing and Urban Development
-03/11/10
Michael H. Posner, Assistant Secretary, Bureau of Democracy, Human Rights, and Labor
-02/26/10
Arturo Valenzuela, Assistant Secretary of State for Western Hemisphere Affairs
-02/26/10
Alexander Vershbow, Assistant Secretary of Defense for International Security Affairs
-02/24/10
Johnnie Carson, Assistant Secretary of State for African Affairs
-02/24/10
Michele Thoren Bond, Deputy Assistant Secretary for Overseas Citizen Services
-02/19/10
Christopher Hill, U.S. Ambassador to Iraq
-02/16/10
Tamara Wittes, Deputy Assistant Secretary, Bureau of Near Eastern Affairs
-02/12/10
Rajiv Shah, USAID Administrator
-02/04/10
Kathleen Hicks, Deputy Under Secretary of Defense for Strategy, Plans and Forces
-02/03/10
Ambassador Richard Holbrooke, U.S. Special Representative for Afghanistan and Pakistan
-02/01/10
Philip H. Gordon, Assistant Secretary of State for European and Eurasian Affairs
-01/28/10
Allan Lichtman, Professor of American Political History, American University
-01/27/10
Kurt M. Cambell, Assistant Secretary of State for East Asian & Pacific Affairs
-01/22/10
Mike Hammer, National Security Council Spokesman
-01/21/10
David T. Johnson, Assistant Secretary for the Bureau of International Narcotics and Law Enforcement Affairs
-01/19/10
Esther Brimmer, Assistant Secretary of State for International Organizations
-01/15/10
Virginia Staab, Deputy Public Affairs Spokesperson
-01/14/10
Alec Ross, Senior Advisor for Innovation
-01/14/10
Charles Luoma-Overstreet, Bureau of Western Hemisphere Affairs
-01/11/10
Scott Gration, Special Envoy for Sudan
-01/07/10
Daniel Feldman, Deputy to the Special Representative for Afghanistan and Pakistan (SRAP)
-01/07/10
Kurt Campbell, Assistant Secretary for East Asian & Pacific Affairs
