President Barack Obama announced Monday that he has nominated Dr. Ashton B. Carter to serve as Under Secretary of Defense for Acquisition, Technology and Logistics.

PDP Co-Director Dr. Ashton B. Carter explores the daunting list of national security challenges facing the next American president.

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

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?"

The Preventive Defense Project conducted a Washington WMD Workshop entitled "Iran Plan B Design" to collect the best thinking on the design of a plan for dealing with Iran's nuclear program should diplomacy fail and the Iranians continue on the path to nuclear capability.

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.