Hiroshima is where the first atomic bomb was dropped. Now readers will learn the reasons why and what it's meant for the world ever since. By August 1945, World War II was over in Europe, but the fighting continued between American forces and the Japanese, who were losing but determined to fight till the bitter end. And so it fell to a new president--Harry S. Truman--to make the fateful decision to drop two atomic bombs--one on Hiroshima and one on...