If I were ‘The Person In Charge of Secrets’, I’d keep it one as long as possible.
If that person exists, I’ve been close to him professionally (the person was a him) in my career in the 90’s and there has never been talk, or even a hint, of any of this. Not to mention the number of Intelligence Community offices that existed in vaults that you couldn’t even get into as an uncleared visitor. The people working inside those vaults would tell you almost everything they were up to when the vault door was closed regardless of need to know because they couldn’t tell anyone else and loved to talk, or hint, about their work. Like the X-Files, I want to believe it and there was a lot of interesting stuff told but NONE of it ever involved aliens or UFOs.
This is the insight into your personal way of thinking. If you were the keeper of secrets, you would keep the secrets. You then extrapolate your thinking to others as proof people are keeping secrets.
Your belief in keeping secrets doesn't prove secrets are being kept. That is what you believe.