Indeed. The existence of a place to hide stuff is circumstantial and certainly no evidence one way or the other. I have a shed in my back garden, a perfect place to hide gold bullion if I had stolen it from Fort Knox. It is unassuming and almost invisible in its mundanity. Clearly that gives credence to the theory that I have stolen gold bars from there, right? Please Register or Log in to view the hidden image! As you say, it seems to be trivial that governments keep secrets. And it seems to be the unwillingness of governments to reveal upon demand the secrets they do keep (for whatever reason) that gives rise to (possibly exaggerated) notions of what those secrets may be, and what else the government may not be telling us. Almost a case of if they don't show us what is in every square foot of Area 51, for example, then it must be because of [insert theory here]. Conspiracy theories are seemingly pedalled on a shift of burden of proof, for people to have to show that aliens don't exist for example, to prove the conspiracy theory incorrect. And if you can't, well, that's clearly because the theory is correct, right? And you're simply a denier if you say otherwise, or you're even part of the cover-up itself, wittingly or not. Proving a cover-up of secrets is one thing, but proving that the secret being covered up is what the conspiracy theorist claims it is is an entirely different matter. And proving the former is no credence toward the specifics of the latter.