The US did not act hastily unless you believe the 'flawed' USSBS of 1946' with the pasted Paul Nitze conclussion which was a theory that went unchecked.
Lots of high ranking officials on both sides made mistakes and bad decisions. The Japanese also had officials that ignored reality.
In Aug 1945' For the most part, Suzuki's military-dominated cabinet favored continuing the war. For the Japanese, surrender was unthinkable—Japan had never been invaded or lost a war in its history.
Japanese minister resigns for saying WW2 atomic bombs 'justified'Last updated at 14:20 03 July 2007
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Japanese minister resigns for saying WW2 atomic bombs 'justified' | Mail Online