Have a look at this:
http://english.pravda.ru/science/19/94/378/16663_UFO.html (http://english.pravda.ru/science/19/94/378/16663_UFO.html)
According to Col Corso in 'The Day After Roswell' the Russians were after the technology since the 1940's. Who knows what to believe anymore. I'll guarentee that no technology will be declassified that has to do with anti-gravity or a near perpetual power source. Leaked perhaps......
Rich