july, july 15, and the test of the atomic takes place in alamogordo on july 16, and general growth potsdam, hands in carried, and given to stimson, who briefs president trayvon -- president truman on it, and churchill, in his famous volumes on world war ii, when he potsdams's -- discusses he says now i know what happened to truman. he had learned about the atomic bomb and he had bossed everyone around that afternoon. suddenly, he was a different man. it gave him the confidence that the united states was in a effect, not only gets a war over with this weapon, but also to have something that stimson called at potsdam "the great equalizer." the atomic bomb would equalize sovietralize the huge advantage in conventional forces in europe. so, truman's attitude changes completely. he calls in general marshall, and he says marshall, you know, we came here with the intention of getting the soviets to live up to their promise to invade to come into the war. can we get them to back off that now that we have the atomic bomb? we don't need them. ,n fact, we don't want them because we don't want them to