At the Brink is a podcast about humanity's most terrible weapon and the stories of those who have shaped its history. Our work was inspired by former Secretary of Defense William Perry, who spent his life working to protect the world from nuclear disaster, and who believes that the risk of nuclear disaster is greater today than ever before. His granddaughter, a millennial who grew up in a post-Cold War world, and who learned about nuclear weapons in history class, went to learn the real story by interviewing presidents, cabinet members, congressmen, scientists, historians, atomic bomb survivors, military officials, and activists.