Analysis of information sources in references of the Wikipedia article "Theodore Hall" in English language version.
Theodore Alvin Hall, who was the youngest physicist to work on the atomic bomb project at Los Alamos during World War II and was later identified as a Soviet spy, died on Nov. 1 in Cambridge, England, where he had become a respected, if not a truly leading, pioneer in biological research. He was 74.
Theodore Hall, who has died at the age of 74, was the American atomic scientist discovered by the United States authorities to have been a wartime Soviet spy – but who was never prosecuted. The information he gave Moscow was at least as sensitive as that which sent Julius and Ethel Rosenberg to the electric chair. But the Americans decided not to charge Hall because of the security and legal difficulties of disclosing that they had penetrated some of the Soviet Union's most secure diplomatic codes. Subsequently, and with the tacit consent of the British security authorities, Hall spent more than 30 years as a respected researcher at Cambridge University until he retired in 1984, aged 59.
