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 tretyakov's 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 wikipedia npov undue 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 discern pete earley comrade j the untold secrets of russia's 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 talk nuclear winter edit conflicts on this page