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  2. Withdrawal of previously declassified U.S. federal records

    en.wikipedia.org/wiki/Withdrawal_of_previously...

    The process of removing previously declassified records was itself covert until it was revealed by the National Security Archive in February 2006. [4] Following outcry by journalists, historians, and the public, an internal audit by the National Archive’s Information Security Oversight Office indicated that more than one-third of the records ...

  3. Classified information in the United States - Wikipedia

    en.wikipedia.org/wiki/Classified_information_in...

    A determination must be made as to how and when the document will be declassified, and the document marked accordingly. Executive Order 13526 describes the reasons and requirements for information to be classified and declassified . Individual agencies within the government develop guidelines for what information is classified and at what level.

  4. Declassification - Wikipedia

    en.wikipedia.org/wiki/Declassification

    Declassification is the process of ceasing a protective classification, often under the principle of freedom of information.Procedures for declassification vary by country.

  5. United States security clearance - Wikipedia

    en.wikipedia.org/wiki/United_States_security...

    A United States security clearance is an official determination that an individual may access information classified by the United States Government.Security clearances are hierarchical; each level grants the holder access to information in that level and the levels below it.

  6. National Security Archive - Wikipedia

    en.wikipedia.org/wiki/National_Security_Archive

    The National Security Archive is a 501(c)(3) non-governmental, non-profit research and archival institution located on the campus of the George Washington University in Washington, D.C. Founded in 1985 to check rising government secrecy, the National Security Archive is an investigative journalism center, open government advocate, international affairs research institute, and the largest ...

  7. 'A blueprint for how al Qaeda operated inside the U.S ...

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  8. Classified information - Wikipedia

    en.wikipedia.org/wiki/Classified_information

    A typical classified document. Page 13 of a U.S. National Security Agency report [1] on the USS Liberty incident, partially declassified and released to the public in July 2004. The original overall classification of the page, "top secret", and the Special Intelligence code word "umbra", are shown at top and bottom.

  9. FBI releases declassified document into Saudi 9/11 links ...

    www.aol.com/news/fbi-releases-declassified...

    The document's release “accelerates our pursuit of truth and justice," said Brett Eagleson, who lost his father in the World Trade Center attack. FBI releases declassified document into Saudi 9/ ...