Description: (American Physicist Who was One of the Atomic Spies for the Soviet Union During World War II)
Theodore Hall was an American physicist. He was one of the atomic spies for the Soviet Union during World War II. Hall gave a detailed description of a plutonium bomb named Fat Man to the Soviet Union. He also passed on vital information such as the processes involved for purifying plutonium. His life inspired a documentary titled A Compassionate Spy.