At the end of WW2 the allies saw the Soviet Union as the next threat to the world. They realized that the S.S and other groups. Had information that be useful to them. They saw it as the lesser of two evils. That is the reason for operation paper clip.
Mark, thank you for your interest and posting. But I doubt you have read the entire thread here. What you are stating is the conventional wisdom or propaganda the elite wanted us to believe. The truth I hope to present here is that the Soviet Union was portrayed as the sole threat from the end of WW1 according to the elite. A very sizable portion of the elite only wanted its destruction before communism and socialism spread throughout Europe and The United States where it was very popular, and they began creating the Nazi war machine in the 1920's.
Many in the US at the time, including FDR, were supportive of the USSR. During the war FDR considered Joseph Stalin a greater ally than Winston Churchill. The Soviets defeated the Nazi's, not the US. By the time US forces landed at Normandy, the war had already been all but won at Stalingrad and Kursk. The true purpose of the delayed landing at Normandy pushed by the elites, was to ensure the Soviets didn't win all of Nazi Europe, to capture and release key Nazi officials and scientists. If FDR did not die the cold war would never have started and the problems the US faced in the following years would have been greatly diminished if not eliminated. Try reading the full thread my friend, and then we can talk about specifics.