Why is "Poodle Blanket" Classified? http://www.gwu.edu/~nsarchiv/nukevault/ebb310/index.htm

2010 - In a response to a Freedom of Information Act (FOIA) request, the Pentagon claims that "Poodle Blanket" contingency plans from 1961 for a possible confrontation over West Berlin (no longer divided) with the Soviet Union (no longer a country) still need to be secret for fear of damage to current U.S. national security, according to documents posted today by the National Security Archive at George Washington University (www.nsarchive.org).

"Keeping information on 'Poodle Blanket' a secret today shows how obsolete the Pentagon's security guidance is," commented William Burr, the Archive's analyst who asked for the documents in 1992 -- making the request one of the oldest still pending in the U.S. government.