of journalists and independent writers to break down the Agency's vaunted anonymity," and describes the book as "the most significant breach in NSA's anonymity since David Kahn's The Codebreakers in 1967." In the years between the book's publication and 9/11, the relationship between Bamford and the NSA grew less adversarial. The NSA cooperated with Bamford on a later book titled Body of Secrets, and in April 2001 the NSA hosted a book-signing event for Bamford at their Maryland headquarters. Bamford was critical of NSA actions in the years following 9/11, and the relationship between the two once again cooled. Editions Notes and references 1982 non-fiction books Non-fiction books about espionage Books about the National Security Agency