Interesting, I have written a little about North Korea. I am going to post some of it in this group.
This is an interesting post. It is the true essence of the Art of War, which is overlooked by many who read the book and think it is about geographical advantage, and choosing where things happen. Those later concepts are in the book, but the most important part is Codes, Spies, Counterintelligence, etc.
And to give up all you have on the other side, over a fisheries instructor could be bad. But maybe the people leaking that information see a larger benefit. Maybe they can prompt copy cats, or cause North Korea to crack the whip and accidentaly cause more defections.
It could go either way.