Renowned statesman, technologist, and manager Ash Carter has helped to shape and lead America’s defense for 35 years. Today, Dutton, an imprint of Penguin Random House, announced that the 25th U.S. Secretary of Defense will share his story of fighting – and winning – some of America’s most consequential battles in a new retrospective, Inside the Five-Sided Box: How America’s Defense Works – And What to Do When It Doesn’t.

“Honey bots” that counter malicious bots. An app called Sanity Check. Cyber Security Bonds. And technology that breaks the grip of online echo chambers. Those are just some of the ideas that college students from around the country presented Thursday in Cambridge as part of the Defending Digital Democracy Project’s first-ever Information Operations Technical and Policy Hack-a-thon.

In February, the Pentagon released a new Nuclear Posture Review (NPR), a comprehensive overview of the nation’s nuclear forces, their disposition, and plans for the future. Here, Belfer Center experts share their assessments of this NPR and the future of America’s nuclear capabilities.

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. But their understanding of the technology also gave them a deep regard for the awesome risks that came with those technologies.

There are over 7,800 think tanks in the world. Many cover international affairs. Far fewer study science and technology. Only the Belfer Center—recently named the world’s No. 1 university research center for the fifth year in a row—leverages both domains to build a more secure, peaceful world.

Ash Carter Guest Hosts MSNBC’s Squawk Box

The Defending Digital Democracy Project wants your help in solving one of the biggest problems facing democracy and our society—information operations intended to influence domestic opinion, inflame divisions, or undermine trust in institutions. There has been a lot of discussion in the media, academia, and policy circles about the dangers of information operations—like spreading information through fake social media personas to further social divisions and influence public behavior. But we need more than talk to stop this—we need action. That is what this contest is all about.

Former Defense Secretary Ash Carter tells The Global Politico's Susan B. Glasser about his Pentagon plan to counter Russia — and why both Obama and Trump have failed to execute it.

Ash Carter, America’s 25^th Secretary of Defense and Director of Harvard Kennedy School’s Belfer Center for Science and International Affairs, was honored with the unveiling of his official portrait at the Pentagon today. At a ceremony featuring current Secretary of Defense James Mattis, former Secretary of Defense William Perry, former Senator Richard Lugar, former member of Congress Jane Harman, British Ambassador to the United States Kim Darroch, and other dignitaries, Carter was recognized for 35 years of extraordinary service to the nation.

Former U.S. Defense Secretary Ash Carter discusses U.S.-China relations, North Korea, the U.S. military, and education. He speaks with Bloomberg's Francine Lacqua and Tom Keene on "Bloomberg Surveillance" at the World Economic Forum's annual meeting in Davos, Switzerland.