SPY Historian Vince Houghton continues his conversation with historian Gregg Herken, focusing on his previous four books on US nuclear policy. Brotherhood of the Bomb, Cardinal Choices, Counsels of War, and The Winning Weapon redefined the ways historians and policymakers have viewed nuclear weapons. Houghton – who himself is a historian of nuclear weapons and intelligence – and Herken discuss the challenges faced by American policymakers and intelligence professionals in dealing with the world’s most dangerous weapon.