NSA (www.nsa.gov) UFO Documents Index...

..."The documents listed on this page were located in response to the numerous requests received by NSA on the subject of Unidentified Flying Objects (UFO). In 1980, NSA was involved in Civil Action No. 80-1562, "Citizens Against Unidentified Flying Objects Secrecy v. National Security Agency". Documents related to that ligitation are marked with "*". "XXXXX" has been inserted in a title if a portion of the title has been deleted prior to release. To select a document click on the document title, and wait for the PDF version to be downloaded to your local viewer. Approximate file sizes are given after each selection for user convenience.

Please Note: These historical documents are PDF images of formerly classified carbon paper and reports that have been declassified. Due to the age and poor quality of some of the PDF images, a screen reader may not be able to process the images into word documents. In accordance with Section 504 of the Rehabilitation Act of 1973, as amended, individuals may request that the government provide auxiliary aids or services to ensure effective communication of the substance of the documents. For such requests, please contact the Public Affairs Office at 301-688-6524."...

You know (: the truth is out there ;) - wink, wink
http://www.nsa.gov/ufo/index.cfm