Apollo 14 astronaut Dr. Edgar Mitchell gave a short presentation at the annual exopolitical gathering: The X-Conference in 2009. The event took place in the Washington DC area.
Edgar Mitchell was the sixth man to walk on the moon. On numerous occasions he has underscored that earth is being visited by extraterrestrials and that the Roswell incident was in fact a crashed ET vehicle.
Mitchell urged the United States government to disclose the ET-presence at the National Press Club the next day.