In this timely and ambitious work, Thomas Doyle combines his twin interests in ethics and nuclear deterrence to good effect. His point of departure is the cold war legacy of “persistent stalemate” between proponents and opponents of nuclear deterrence. Doyle makes a strong case for a new nuclear ethics better aligned with current circumstances, one based on the 1980s concept of “common security.” His assertion that stalemate can give way to consensus on this new basis serves as a useful provocation to the needed moral and political debate.