In 1998 Congress passed the Nazi War Crimes Disclosure Act [P.L. 105-246] as part of a series of efforts to identify, declassify, and release federal records on the perpetration of Nazi war crimes and on Allied efforts to locate and punish war criminals. Under the direction of the National Archives the Interagency Working Group [IWG] opened to research over 8 million of pages of records - including recent 21st century documentation. Of particular importance to this volume are many declassified intelligence records from the Central Intelligence Agency and the Army Intelligence Command, which were not fully processed and available at the time that the IWG issued its Final Report in 2007. As a consequence, Congress [in HR 110-920] charged the National Archives in 2009 to prepare an additional historical volume as a companion piece to its 2005 volume U. S. Intelligence and the Nazis. Professors Richard Breitman and Norman J. W. Goda note in Hitler's Shadow that these CIA & Army records produced new "evidence of war crimes and about wartime activities of war criminals; postwar documents on the search for war criminals; documents about the escape of war criminals; documents about the Allied protection or use of war criminals; and documents about the postwar activities of war criminals". This volume of essays points to the significant impact that flowed from Congress and the Executive Branch agencies in adopting a broader and fuller release of previously security classified war crimes documentation.