Dropping that bomb saved millions of Japanese lives.
"The invasion of Japan was to be no easy military undertaking and casualties were to be extremely heavy. Admiral William Leahy estimated that there would be over 250,000 Americans killed or wounded on Kyushu alone. General Charles Willoughby, MacArthur's Chief of Intelligence estimated that American casualties from the entire operation would be one million men by the fall of 1946. General Willoughby's own Intelligence staff considered this to be a conservative estimate. "