DEDICATION First and foremost, this report is dedicated to the memory cf a young Marshallese man, Lekoj Anjain, who was one year old when the world's greatest nuclear explosion was detonated one-hundred miles from his home on March 1, 1954 and who was nineteen years old when he died during treatment for acute myelogenous leukemia in a small hospital room at the National Institute of Health at Bethesda, Maryland on November 15, 1972. It is also dedicated to his parents and the people of Rongelap and Utirik, who were exposed to radiation from the 1954 tests and to their descendants. Also, by inference, this report is also dedicated, not only to those Japanese and Americans exposed to the effects of nuclear weapons from the Hiroshima, Nagasaki, and Bravo bombs, but to those scientists who willingly or inadvertently sacrificed their health or life in order to gain new knowledge about the little-understood phenomenon of radioactivity. Finally, it is also dedicated to those unknown and unnamed people now, and in the future, who may suffer or die from the effects of weapons-—testing conducted by the nuclear powers of the world in the name of national security or through the misuse or mal-application of radioactive materials and instruments. It is hoped that this report will contribute to the understanding of a complex, subtle, and important subject and will serve as a warning to its readers that man must increase knowledge of himself and his neighbors in order to detter control forces of nature at his disposal lest those very forces end up controlling and destroying man. 9010263