Former U.S. Defense Secretary Ash Carter speaks with The WorldPost’s editor in chief, Nathan Gardels, about the Trump administration’s new China policy, North Korea and the pending U.S. withdrawal from the Intermediate-Range Nuclear Forces Treaty.

Belfer Center Director and former Secretary of Defense Ash Carter talks about pulling out of the Iran Deal, North Korea, and more on CNN New Day with Chris Cuomo.

A full transcript of the speech given by Senator Jack Reed of Rhode Island at the Harvard Kennedy School on April 23, 2018 at the Future of Diplomacy's seminar entitled "A Conversation with Senator Jack Reed on American National Security."

Ash Carter Guest Hosts MSNBC’s Squawk Box

Ash Carter participates in panel discussions at the 2018 World Economic Forum in Davos.

The last time that America almost risked a pre-emptive strike on North Korea the gamble offered a spectacular pay-off. Ashton Carter, a leading architect of that plan, recalls that his scheme for bombing the Yongbyon nuclear facility in 1994 assumed that in one or two days the entirety of the regime’s nuclear programme could be levelled and entombed in rubble. Mr Carter, who went on to become defence secretary in the Obama administration, now thinks that an American first strike would only put “a significant dent” in North Korea’s arsenal of nuclear devices and bombmaking sites. “The difference today is that the North Koreans are very good at hiding, burying and moving around their nuclear infrastructure,” says Mr Carter, now at Harvard University.

Ash Carter is a physicist and a defense-policy expert, having served in government periodically for decades. He was secretary of defense from 2015 to 2017. He has spent his academic career at Harvard, where he is today. In this “Q&A,” Jay Nordlinger asks him about some of the biggest issues: nuclear proliferation, North Korea, Iran, the size of the U.S. military. He also asks about the relation between our servicemen and the general American population. Is there too great a gulf between them? Do people sentimentalize our military? Is it okay to say “Thank you for your service”?

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.

Matthew Bunn, Nicholas Burns, Ash Carter, John Park, Gary Samore, and Elizabeth Sherwood-Randall provide expert analysis on nuclear tests and threats from North Korea.

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."