I remember when the bombs were dropped on Japan.
There was opposition, serious opposition and to this day there are those on the left who decry the dropping of the bombs.
Did you ever hear Peter Jennings insisting that Japan was simply trying to preserve their culture when the bombed Pearl Harbor.
The Manhattan Project was a well kept secret. It was even kept a secret from VP Harry Truman. If you mean there was opposition to the Nakasaki a-bomb being dropped, okay. But by that time, the invasion of Japan was off the table.
I’m not clear exactly what you mean with the reference to Peter Jennings.