It was two years ago that the Oscar-winning blockbuster 'Oppenheimer' sent the message that it was the Americans, or rather one American in particular, who was responsible for the atomic explosion that brought the Second World War to an explosive close. The man in question was native New Yorker Robert Oppenheimer, scientific director of the Manhattan Project's top-secret programme of nuclear bomb-making deep in the New Mexican desert. By August 1945 'Little Boy' and 'Fat Man' were ready to be loaded on to B-29 bombers, flown halfway across the world and dropped on two of Japan's major cities to devastating...