http://www.nsa.gov/about/cryptologic_heritage/center_crypt_history/news/index.shtml The theme for the 2013 symposium, to be held on October 17-18 at the Johns Hopkins Applied Physics Laboratory's Kossiakoff Conference Center (just west of Laurel, Maryland) is "Technological Change and Cryptology: Meeting the Historical Challenges." The conference will include sessions on "A Tribute to Alan Turing," a "Roundtable on Cyber History," "Bletchley Park," "COMINT and the Civil War," "The Cryptologic Legacy of the Great War Era," "SIGINT and the Vietnam War Era," and "A Technological Advantage: Historical Perspectives on Cryptologic Research and Development." In all there will be 21 separate sessions and over 70 presentations. Speakers will include scholars such as David Kahn and cryptologic pioneers such as Whitfield Diffie. All symposium sessions are unclassified. A complete agenda and registration information will be available on this site in mid-August. For more information, please contact the Center for CryptologicHistory at 301-688-2336 or via email at <mailto:history@xxxxxxx>history@xxxxxxx.