Venik wrote;

They knew that if the Emperor is not allowed to stay, no
amount of nukes will solve the problem.

Actually they *thought* even if Japan capitulated that many in the Army (and
there were well over 2 million soldiers still in uniform) would continue to
fight unless the Emporer was still in power and commanded them to surrender.

"On July 24 I casually mentioned to Stalin that we had a new weapon of
unusual destructive force.

Which hardy means he briefed Stalin on the results of the Mahatten Project as
you insinuated.


BUFDRVR

"Stay on the bomb run boys, I'm gonna get those bomb doors open if it harelips
everyone on Bear Creek"