Eavesdropping on Hell: Historical Guide to Western Communications Intelligence and the Holocaust, 1939-1945

This official government publication explains the archival organization of wartime records for the U.S. Army's Signal Intelligence Service and Britain's Government Code and Cypher School. In addition, it summarizes Holocaust-related information intercepted during the war years.


About the Author
Robert J. Hanyok is a researcher and historian with the Center for Cryptologic History of the National Security Agency.