According to National Security Agency historian Robert Hanyok, his recent work outlining a deliberate NSA cover-up following the Gulf of Tonkin incident has been suppressed by the agency since 2001, in part because of Weaponsgate. “He said N.S.A. historians began pushing for public release in 2002, after Mr. Hanyok included his Tonkin Gulf findings in a 400-page, in-house history of the agency and Vietnam called ‘Spartans in Darkness.’ Though superiors initially expressed support for releasing it, the idea lost momentum as Iraq intelligence was being called into question, the official said.“