I can agree with that assertion. One of the most fascinating books I have ever read was Richard Rhodes' The Making of the Atomic Bomb.
http://www.amazon.com/Making-Atomic-Bomb-text-Rhodes/dp/B0043493DO/ref=sr_1_2?ie=UTF8&qid=1464656296&sr=8-2&keywords=The+Making+of+the+Atomic+Bomb
Rhodes, a historian, understood the science and explained the history of nuclear physics in layman's terms. It made me want to study nuclear physics.
The scientists who developed the Bomb were largely Jewish expats who had fled Europe because of their fear of Hitler. They approached FDR through his connections with Albert Einstein, and recommended that the U.S. start its nuclear program, because if we did not, the Germans might develop the Bomb first. The main motivator of these Jewish physicists was to get there before the Germans did. It turns out that Germany was only interested in the nuclear reactor (they called it the "nuclear burner") and never had a program to make a bomb. But, if Germany had not surrendered for an additional 4-5 months in 1945, Berlin would have been the Bomb's first target.
After the German surrender, the Jewish scientists suddenly turned pacifist, and did not recommend that the Bomb be used against Japan. They wanted it demonstrated to the Japanese in an unpopulated area to show Japan's leadership what was in store for them if they did not capitulate immediately.
But, the U.S. had made a major investment in this program, had just a few bombs to show for it, so they went for Hiroshima on the first-go instead.
My father was in Navy boot camp in San Diego when the bombs were dropped and when VJ-Day occurred a few weeks later. The bomb kept my father from seeing any combat in the war. I am sure several others in my generation had fathers who were also spared from participating in the war because of the atomic attacks as well.
Postscript: Had Hitler treated the Jews differently, the scientists who made the Bomb for us might have made it for him instead......