August 6 marks the 75th anniversary of the first time nuclear weapons were used in combat, when the United States bombed Hiroshima and later, Nagasaki. Former Deputy Secretary of Energy Elizabeth Sherwood-Randall and Stanford University's Scott Sagan join Deep Dish to examine nuclear weapons today and what Americans can do as arms control regimes falter, modernization programs move forward, and new technologies upend the logic we've relied on to deter the weapons' use.