Letter to U.S. Senate Urging Ratification of New START Treaty, November 29, 2010
Letter to U.S. Senate on Funding for Reliable Replacement Warhead Program, December 5, 2005
Letter to Secretary of State Clinton on U.S. Policy Towards Nuclear Nonproliferation , April 8, 2009
Letter to U.S. House of Representatives in Support of Global Security Priorities Act and Nuclear Nonproliferation Efforts, February 5, 2008
Letter to President Obama in Support of the New START Treaty, in Spanish, April 8, 2010
Letter to President Obama in Support of New START Treaty, April 8, 2010
Letter to U.S. House of Representatives on Global Security Priorities Resolution and Savings from Reducing Nuclear Arsenal, November 2, 2009
Letter to U.S. House of Representatives Regarding Global Security Priorities Act and Nuclear Nonproliferation, March 30, 2009
Letter to U.S. House of Representatives on Global Security Priorities Act and Nuclear Arms Reduction, July, 11, 2008
Letter to Congress Urging the End of Funding for Reliable Replacement Warhead Program, May 9, 2007
Letter to Congress Regarding Research on Robust Nuclear Earth Penetrator, May 10, 2005
Letter to U.S. Senate on Funding for Nuclear Weapons in the Energy and Water Appropriations Bill, September 15, 2003
Letter to U.S. Senate on Nuclear Weapons Research Funding, July 18, 2005
Letters to Secretary of State Powell and Secretary of Defense Rumsfeld on U.S. Landmines Policy, August 9, 2001
Letter to U.S. Senate on Victim-Activated Landmine Abolition Act, September 5, 2006
Letter to Congress on Alternatives to Landmines, October 31, 2005
Letter to Secretary of State Rice on Cluster Munitions Convention on Cluster Munitions, November 21, 2008
Letters to Secretary of State Clinton and Secretary of Defense Gates on Mine Ban Treaty, May 18, 2010
Letter to National Security Advisor Donilon on Mine Ban Treaty, October 28, 2010
Letters to Congress on Cluster Munitions Civilian Protection Act, May 1, 2007