
Nuclear weapons once preoccupied all Americans. During the Cold War, as the U.S. and the Soviet Union amassed arsenals, aimed them at each other, and held the world in a delicate balance appropriately abbreviated as MAD, world leaders realized the need to control nuclear weaponry even as they sought to attain or expand nuclear capability. Today, more countries are members of the nuclear club, and more non-state actors are trying to join, but awareness about the danger of nuclear weapons seems disproportionately low. Before Zócalo and KCRW present Countdown to Zero, a documentary pressing for global disarmament, we asked four academics, writers, and scientists to explain just how dangerous the world is today, and how we can reign in loose nukes.