http://www.nsarchive.gwu.edu/coldwar/documents/episode-1/kennan.html;“The Charge in the Soviet Union(Kennan)to the Secretary of State”, FRUS ,Vol.6,1946,pp.696-709. ZL7Ea0GUzt46BJn60mBap4Akqb61EEkLjbCN7XPlOPL289I45L5m4fG17liVKUMC