Journalist Eileen Welsome talks about her book, The Plutonium Files: America’s Secret Medical Experiments in the Cold War (Dial Press). The Plutonium Files is about the thousands of secret, government sponsored radiation experiments conducted on unsuspecting Americans during the Cold War. Welsome won the Pulitzer Prize for her initial research and writing on these experiments. Her book includes new facts about the Manhattan Project, the scientists who conducted the research, and the experiments’ victims.