PDP Co-Director Ashton B. Carter and the Honorable Robert G. Joseph co-chaired a Review Panel on Future Directions for DTRA Missions and Capabilities to Combat Weapons of Mass Destruction (WMD).

This report of the International Security Advisory Board (ISAB) offers nineteen recommendations for discouraging a cascade of nuclear weapons states.

This National Security Advisory Group report provides a new comprehensive strategy for reducing nuclear threats and preventing nuclear terrorism.

Failure to develop a comprehensive contingency plan, such as the one proposed here, and inform the American public, where appropriate, about its particulars will only serve to amplify the devastating impact of any nuclear attack on a U.S. city

Carter's update to his July/August 2006 Foreign Affairs essay "America's New Strategic Partner?"

In 2006, the U.S. and Indian governments struck a deal that recognizes India as a nuclear weapons power.  Critics say Washington gave up too much too soon and at a great cost to nonproliferation efforts.  Perhaps.  But India could in time become a valuable security partner.  So despite the deal’s flaws and the uncertainties surrounding its implementation, Washington should move forward with it.

Former Clinton administration officials Ashton Carter and William Perry argue that the most effective way to curb the threat from Pyongyang is to destroy its missiles at their test sites

Should the United States allow a country openly hostile to it and armed with nuclear weapons to perfect an intercontinental ballistic missile capable of delivering nuclear weapons to U.S. soil? We believe not. If North Korea persists in its launch preparations, the United States should immediately make clear its intention to strike and destroy the North Korean Taepodong missile before it can be launched.

Dr. Ashton B. Carter testifies before the Senate Committee on Foreign Relations.

Dr. Ashton B. Carter testifies before the Senate Committee on Foreign Relations on the Implications for U.S. Nonproliferation Policy of the July 18, 2005 Joint Statement between President Bush and Prime Minister Manmohan Singh of India