Tells the story of U.S. nuclear custody policy from 1945 to 1990, and offers a new framework for approaching the issue of nuclear command and control (NCC). Examines the fundamental constraints and dilemmas inherent in the operation of NCC. Provides an overview of civilian control of each component of nuclear operation. Offers a model identifying factors that explain changes in civilian control policy over time. Draws on extensive interviews and recently declassified government documents. Provides a historical account of nuclear weapons custody, paying particular attention to the Truman, Eisenhower, and Kennedy admin's.