The story is particularly mind-boggling for two reasons. First, the American Civil Liberties Union fought a legal battle with the FBI over access to the document. When the FBI relented and released a copy to the ACLU, it was heavily redacted — unlike the 70-plus page version of the manual available from the Library of Congress.
Second, the manual cannot even qualify for a copyright because it is a government work. Anything "prepared by an officer or employee of the United States government as part of that person's official duties" is not subject to copyright in the United States."
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