[smsm42]

Read your history. Japan wasn't "surrendering anyway" at the time - not even after the destruction of Tokyo (which btw resulted in more casualties than the nuclear attack). In fact, six Japan's largest cities were destroyed and they weren't "surrendering anyway". They rejected the Potsdam declaration as late as end of July. Even after Hiroshima they were only ready to surrender if the whole power structure and the government were preserved and granted the authority to deal with the aftermath of the war (that's like Hitler demanding Nazi party would stay in power and be responsible for investigating Nazi war crimes). In fact, the Japanese military was completely convinced they can and should go on with the war even after Hiroshima.