The Manhattan Project (Off-The-Cuff Interview) Studs was a Chicago based newspaper & TV columnist and I read some of his stuff in which he was a working man's historian. Here's a bit of American history yet to reach the history books - an August 2002 interview by writer Studs Terkel with Paul Tibbets, the pilot of the B-29 that dropped the first atom bomb. Number 3 would have gone nicely on Moscow. I've always read that we had only two bombs and used them both on the Japs. Here is some interesting reading as to a third bomb.
The Manhattan Project Interview.Long but a really GOOD read!