Ethnic Cleansing and Soviet Crimes Against Humanity
As I said, before, one major difference between Nazi and Soviet mass murders is that the Nazi actions were revealed to the World by Allied photographers in 1945 while the Soviet mass murders occurred far beyond the cameras.
And Restorer's post at #2 agrees with me: "However, most Soviet citizens quickly and correctly realized that the Nazis were even worse (for them) than the Commies, regardless of how hard that is to believe."