I understand the skepticism and respect it. If someone you know claims to have such a background, it is a simple matter to ask their parent about the investigation. If no investigator from the DIA has spoken to them, then they do not have clearances. If it's some random twerp on the internet, then you have zero ability to authenticate. But, like the people who feel certain that UFOs are alien in origin, certainty in the absence of facts is not warranted. Suspicions, opinions, expectations... absolutely, but you can't be certain. And I admit I was surprised that I was telling you that you were correct, and then you decided to argue the opposite. Interesting.