In the 1960's my uncle was a Lt. Colonel in the Air Force Strategic Command in charge of a number of ICBM missile silos and security officer for his base. My brother asked him two questions shortly before he died.
1. Did aliens crash at Roswell and are there any remains of a ship or any life form? Answer: NO
2. Did we really land men on the moon? Answer: YES
I'll have to accept my Uncles answers over and above anything that conspiracy theorists have to offer.