Seems like a system of 'open secrets' is the ideal for intelligence agencies. Within and between agencies it cuts down on red tape, but classification can still be selectively invoked to target whistleblowers, the public, etc. With classification turning into a vestigial legal enforcement mechanism. Take the case of the Danish spy chief who was arrested for acknowleging that country's collusion with US intel. The people still know, everyone knows, but the govt still retains the right to take espionage cases against ppl who use the informatian to produce speech they especially don't like. Snowden, Manning, Assange, all seem like similar cases.