'''Ruby Weil''' was an American and secret [[Communist]] who infiltrated the [[Trotskyist]] movement as part of the [[NKVD|Soviet intelligence]] operation to murder [[Leon Trotsky]].
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==References==
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*Louis Budenz, ''Men Without Faces'' New York: Harper and Brothers, (1948), pgs. 126–129.
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*Klehr, Haynes, and Firsov, ''The Secret World of American Communism'', pg. 142.
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*John Earl Haynes and Harvey Klehr, ''Venona: Decoding Soviet Espionage in America'', Yale University Press (1999).