page_title: Leon Josephson
section_title: Espionage:  Rosenberg Case
hierarchical_section_title: Leon Josephson / Career / Espionage:  Rosenberg Case
context_page_description: Leon Josephson was an American Communist labor lawyer for International Labor Defense and Soviet spy, best known for a 1947 Contempt of Congress citation from House Un-American Activities Committee.
context_section_description: According to the 2007 book Spies, Josephson and John L. Spivak "burglarized" the offices of labor lawyer O. John Rogge, attorney for David Greenglass, and stole papers later published by the Communist Party to discredit Greenglass in his testimony in the Rosenberg Case.
  The failure of FBI to prosecute Josephson for the (alleged) theft of the papers of a key witness Greenglass in a Federal espionage case, papers then published by the Communist Party, appears to be an oversight of law enforcement, reference needed.
caption: Josephson helped steal papers of David Greenglass (here in mugshot), whose testimony against his sister Ethel Greenglass Rosenberg led to the Rosenberg Case.
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