Scientists and engineers who worked for MIT’s Radiation Laboratory had a saying about World War II: The atomic bomb may have ended the war, but radar won it. A new PBS documentary makes the case for that bold statement by telling the story of Alfred Lee Loomis, a founder of the Radiation Lab and a millionaire Wall Street tycoon who directed the U.S. government’s wartime effort to develop radar technologies into effective weapons. But even before the war, Loomis had built up his scientific cr