Bloomberg Opinion columnist Barry Ritholtz interviews former U.S. Secretary of Defense Ash Carter, who led the department from 2015 to 2017 and now serves as the director of Harvard University’s Belfer Center for Science and International Affairs. His latest book, “Inside the Five-Sided Box: Lessons From a Lifetime of Leadership in the Pentagon,” was released this year.  See omnystudio.com/listener for privacy information.

Bloomberg Opinion columnist Barry Ritholtz interviews the Wall Street Journal's Gregory Zuckerman, a three-time winner of the Gerald Loeb Award for business journalism who writes about big trades, big firms and big personalities. His latest book, "The Man Who Solved the Market: How Jim Simons Launched the Quant Revolution" will be released Nov. 5. See omnystudio.com/listener for privacy information.