This morning, the Board of Directors and the Board of Sponsors of the Bulletin of the Atomic Scientists announced that the minute hand of the Doomsday Clock would be moved one minute back from five to six minutes to midnight. The group, which contains 18 Nobel laureates, cited “a more hopeful state of world affairs” in their decision to indicate the world is metaphorically one step further away from annihilation. “We are poised to bend the arc of history toward a world free of nuclear weapons.”