L██ Mc█████: Well I can't tell you that, J██; it was classified. But I can tell you it was classified by the ██████████████████.
Information which is kept secret from most people, on an organized basis. A trope common in espionage and military fiction. Truth in Television, of course; governments (and other organizations) do keep formal secrets. Classification systems can range from ██████████████████ that everyone at a workplace can immediately access and make an █████████ number of copies; to very rigid and quite complex █████████████████ systems, where the holder must go through arduous background investigations and have an official “need to know” in order to get access to, in most cases, only a small part of the puzzle.
In fiction, this often materializes as ███ ████ used by characters in order to withhold certain information from others. This occasionally leads to ██████████████████ Kills. (And that's Truth in Television too.) Often Played for Drama, but sometimes it can also be Played for Laughs. In more cynical cases, the classification system is abused by ███████ ██████████s and obstructive ██████████s to cover up their misdeeds and embarrassments.
Of course this leads to the question as to why would someone even bother to keep records of their misdeeds in the first place, as the only people who want to know are either the people already doing them or people who want to access them to expose what is inside. This is the equivalent of keeping ██████████████████████ with yourself for no reason.
Compare I'd Tell You But Then I'd Have To ████ You, Conveniently Interrupted Document, and Plausible Deniability. See also ████████████████ for the "████████ ██████ ██ ███ █████" █████, and Loose ████ for the dangers of accidentally letting slip useful bits of information in passing.
