In this concise account of why America used atomic bombs against Japan in 1945, J. Samuel Walker analyzes the reasons behind President Truman's most controversial decision. He delineates what was known and not known by American leaders at the time and evaluates the role of U.S.-Soviet relations and American domestic politics. In this new edition, Walker takes into account recent scholarship on the topic, including new information on the Japanese decision to surrender. He has revised the book to place more emphasis on the effect of the Soviet invasion of Manchuria in convincing the emperor and his advisers to quit the war. Rising above an often polemical debate, Walker presents an accessible synthesis of previous work and an important, original contribution to our understanding of the events that ushered in the atomic age....

In The Road to Yucca Mountain, J. Samuel Walker traces the U.S. government's tangled efforts to solve the technical and political problems associated with radioactive waste. From the Manhattan Project through the designation in 1987 of Yucca Mountain in Nevada as a high-level waste repository, Walker thoroughly investigates the approaches adopted by the U.S. Atomic Energy Commission (AEC). He explains the growing criticism of the AEC's waste programs, such as the AEC's embarrassing failure in its first serious effort to build a high-level waste repository in a Kansas salt mine. Clearly and accessibly, Walker explains the issues surrounding deep geological disposal and surface storage of high-level waste and spent reactor fuel. He analyzes the equally complex and divisive question of fuel "reprocessing." He weaves reliable research with fresh insights about nuclear science, geology, politics, and public administration, making this original and authoritative account an essential guide for understanding the continuing controversy over an illusive and emotional topic....