An Army surgeon involved in U.S. nuclear weapons development repeatedly warned about the impact of radiation on humans, but the Manhattan Project site chief sought to downplay the danger to manage public perception of such weapons, his grandson said.
Working as a radiologist during the Trinity test in New Mexico, Surgeon James F. Nolan became aware of radiation’s impact on humans through pre-tests. In June 1945, he submitted a report directly to Army Gen. Leslie Groves, aiming to raise concerns about the health risks of nuclear weapons, according to the surgeon’s grandson, James Nolan Jr.
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