Unsubstantiated claim by a single KGB member does not merit lengthy paragraph  There is a long paragraph on the claim by Sergei Tretyakov intelligence officer that the Soviets invented the idea nuclear winter as propaganda but the only evidence for this claim is Tretyakovs word and the author of the book which reported it notes that whether this is true is impossible to discern With no evidence given that historians or members of the intelligence community find this claim likely to be true devoting so much space to it seems to violate WikipediaNPOVUndue weight I suggest either removing the paragraph entirely or adding the following to the existing list of Soviet propaganda  Senior SVR officer Sergei Tretyakov made the claim to writer Pete Earley that the KGB created the myth of nuclear winter as disinformation see Sergei Tretyakov for details although Earley said that the accuracy of this claim is impossible to discernPete Earley Comrade J The Untold Secrets of Russias Master Spy in America After the End of the Cold War Penguin Books  ISBN  pages   Also see the existing discussion on an attempt to add a similar section to the nuclear winter article at TalkNuclear winterEdit Conflicts on this page