Ha! That reminds me of when I was in the service I had a Secret level clearance. Without being specific, most of the “secrets” we were tasked with were so embarrassingly silly. Like, the effective range of a weapon would be stated as 1km less than the actual range (take that America’s enemies!).
Meanwhile, the guys who had been stationed in Korea would tell me that they’d get street food wrapped in pages of our supposedly secret tech manuals.
