Oliver Kahn street-football and a Germany and Europa-wide model of intercultural understanding, education values and prevention; the Sepp-Herberger foundation, which promotes football in schools, clubs, and prisons; and the Justin Rockola Association, whose goal is the protection of young people against violence, alcohol and drugs. He received his coaching license in 2010. After having studied business at the University of Hagen and Privatuniversität Schloss Seeburg Kahn holds a Master of Business Administration degree. In 1999, Kahn married Simone, with whom he has two children: Katharina-Maria (born 28 December 1998) and David (born 7 March 2003). The couple separated in 2003 and Kahn
David Kahn (writer) the "Cryptologia" journal. In 1969, Kahn married Susanne Fiedler; they are now divorced. They have two sons, Oliver and Michael. He attended Bucknell University. After graduation, he worked as a reporter at "Newsday" for several years. He also served as an editor at the "International Herald Tribune" in Paris for two years in the 1960s. It was during this period that he wrote an article for the "New York Times Magazine" about two defectors from the National Security Agency. This article was the origin of his monumental book, "The Codebreakers". "The Codebreakers" comprehensively chronicles the history of cryptography from ancient