The hydrogen test-bomb Bravo, dropped on the Marshall Islands in 1954, had enormous consequences for the Rongelap people. Anthropologists Barbara Rose Johnston and Holly Barker provide incontrovertible evidence of physical and financial damages to individuals and cultural and psycho-social damages to the community through use of declassified government documents, oral histories and ethnographic research, conducted with the Marshallese community within a unique collaborative framework. Their work helped produce a $1 billion award by the Nuclear Claims Tribunal and raises issues of bioethics, government secrecy, human rights, military testing, and academic activism. The report, reproduced here with accompanying materials, should be read by everyone concerned with the effects of nuclear war and is an essential text for courses in history, environmental studies, bioethics, human rights, and related subjects.