That wasn't really in space, but ok.
Do you think he knows what was going on during the sighting? Or do you think he is reporting the truth to the best of his capability?
The X-37 is the best example of one widely known to exist, without yet knowing all the details of its purpose and missions. It's pretty unlikely to be the only such program.
Really interesting theory! If your descendents 50,000 years from now could read this comment, do you think it would reflect positively on your persona?
Personally, I believe that the "UFO" seen by the Navy pilot Commander David Fravor was a Navy craft. I don't think it was extraterrestrial in origin.
Hence, "secret space programs."