NK was weapons arsenal and propaganda film studio that would ensure bad relations and threaten the world. Control them through fear. The Warmbier show was scripted to provoke war. The 'parents' trying to sue the country the moment peace was on the table: A feeble, desperate attempt and yet a good example of how the system works.
Kim inherited the mess from his father and now he is ending it. He was never free to do what he wanted. He has been just as much a hostage in his country like everyone else.
History will remember these two brave 'madmen' and everyone who helped them achieve this task much more kindly than it looks now. Bet on it.