14:56 01/21/2023 U.S. Congress’s First Reaction to Report of Atomic Bomb in Japan 0 (0) The atomic bomb dropped on Hiroshima destroyed everything within two kilometers. Senator Magnusson, what’s a kilometre? How useful was this post? Click on a star to rate it! Submit Rating Average rating 0 / 5. Vote count: 0 No votes so far! Be the first to rate this post.