PHOENIX - A former astronaut who walked on the moon says he think aliens have crash-landed on Earth. Edgar Mitchell, the sixth man to walk on the moon, said he believes some military and other planes use technology derived from alien spacecraft that have been captured and disassembled. The purported secret project has been going for decades under a parallel government administration, separate from the president and the highest-ranking members of the Pentagon, Mitchell said. On Saturday, Mitchell called for congressional hearings on whether the United States has captured alien craft and studied them to produce new technologies.
Excerpts from a speech by Astronaut Edgar Mitchell, at a Stephen Greer conference in 1987:
In our briefing of the Joint Chiefs of Staff Intelligence Group, it became very clear to us that they were naive. They did not really know any more about this effort than we do, if as much. That is because, as Bob Dean pointed out earlier, most of the people in government were not in government when I retired twenty five years ago, they are younger people. The files going back fifty years just no longer exist. They've either been purged, compromised or whatever. They don't exist.
So when we blame government for not being forthright, they really don't have anything to be forthright about, at least at that level. Now, somewhere there's knowledgeable people, ...the question often comes up as to how they could have kept this a secret for so long. And friends they haven't. It's been around us all the time, but it has been denied, and obscured. ... the prevalence in the modern era of so many events - the sightings, the continual mutilation events, the so-called abduction events ... I find that quite alarming. ... With regard to the technology itself, I work with folks who do know what is in our technological data base and what is available to modern armies. The so-called ET technology, the ability to have silent engines and flying machines that make no sound, flying machines that have the characteristics that are consistent with reproduction of UFO sightings, are not in any nations arsenal, but they do exist.
So if there are back engineered technologies existing, they are probably in the hands of this group of individuals, formerly government, formerly perhaps intelligence, formerly, under private sector control with some sort of oversight by military or by government. But this (oversight) is likely no longer the case as a result of this access denied category that is now operating. I call it a clandestine group. The technology is not in our military arsenals anywhere in the world, but it does exist, and to me that's quite disconcerting.
See here for Dr. Mitchell's opinion on the Roswell incident.