Japan did not surrender after the 1st atomic bomb...
Gives you an indication of the mentality....Fight till the last civilian life is spent..
You read it long. The Japanese knew as much about atom bomb designs as we did. It was well understood that building even one bomb was an incredible undertaking, and that building two of the same kind would be very expensive and take a lot of time in which they could finish up their own bombs. What we did was build two different kinds ~ which meant that we would continue to be coming at them with atom bombs and that TIME WAS UP.
The high command didn't care about the civilians one way or the other, atom bomb or no atom bomb, but a multiplicity of atom bombs would totally destroy their position in their society, and probably them.