It's amazing how long communists and their fellow-travellers clung to Soviet propaganda, and many still do despite the Venona disclosures and for a time opening of Soviet archives.
These daily threads since Roosevelt's death have revealed how the decision to drop the bombs was made and it had very little to do with the Russians. I would say, however, that some icing on the cake was that we really didn't need them in the Pacific war anymore.
Whatever one thinks about Harry Truman, what you saw was what you got. He told you what he thought straightaway. When I was growing up if the K.C. TV stations wanted a salty quote for the evening news all they had to do was go out to Independence and ask Harry for one.
It looks like the Ruusians are still mad about it.
http://www.freerepublic.com/focus/f-news/3321916/posts