When I began my career in elementary particle physics, the great figures who taught and inspired me had been part of the Manhattan Project generation that developed the atomic bomb. They were proud to have created a “disruptive” technology that ended World War II and deterred a third world war through more than 50 years of tense East-West standoff. They were also proud to have made nuclear power possible. But their understanding of the underlying technology also gave them a deep regard for the awesome, unavoidable risks that came with those technologies.

Ash Carter discusses public service, opening the military to transgender troops, and North Korea's latest missile launch with actor Jim Parsons on his SiriusXM radio show "Jim Parsons Is Too Stupid For Politics."

Ashton B. Carter contributes a chapter to McGraw-Hill's new volume on Weapons of Mass Destruction and Terrorism.

Remarks by Ashton B. Carter at the 36th IFPA-Fletcher Conference on National Security Strategy and Policy, Washington, DC.

Interim Report from the Policy Advisory Group (PAG), a panel of experts convened to provide advice to the Senate Foreign Relations Committee on what Congress and the administration should do to strengthen the NPT system.

Dr. Ashton B. Carter testifies before the 9/11 Public Discourse Project's hearings on "The 9/11 Commission Report: The Unfinished Agenda."

9/11 Public Discourse Project holds panel discussion on terrorism and weapons of mass destruction.

The fallacy in the Bush administration's appointment of a commission to study intelligence failures is that there is almost never such a thing as a pure intelligence failure. Intelligence failure is usually linked to policy failure.

Dr. Ashton B. Carter testifies before the Robb-Silberman Commission on the Intelligence Capabilities of the United States Regarding Weapons of Mass Destruction.

Dr. Ashton B. Carter testifies before the House Armed Services Committee.