"Media Advisory: National Archives Releases Additional Materials Reviewed by the Assassination Records Review Board,"Assassination Records Review Board (a division of the U.S. National Archives and Records Administration), 17 November 1997. A U.S. government press-release announcing the declassification of some 1,500 pages of U.S. government documents from 1962 to 1964 relating to U.S. policy towards Cuba, among which declassified documents included the Operation Northwoods document.