If Japan does not surrender, bombs will have to be dropped on her war industries and, unfortunately, thousands of civilian lives will be lost. But that attack is only a warning of things to come. That was because we wished in this first attack to avoid, insofar as possible, the killing of civilians.
The world will note that the first atomic bomb was dropped on Hiroshima, a military base. Robert Oppenheimer’s concerns over nuclear power and warĪrchival Audio - President Truman’s Radio Report to the Nation