Show me a persona non grata, and I'll show you a persona non give a shit. - Brian Reynolds Myers

I don’t buy the common notion that if the US and South Korea promise convincingly enough never to topple the Kim dictatorship from without, it will let itself be toppled slowly from within.

Whatever "Cold War system" there might once have been here is already defunct. There was never such a system in the minds of the opposed leaders, despite the peninsula’s tragic importance to Moscow and Washington. It might have been better if there had been. I’m not being flippant. Germans in East and West benefited from how each system tried to prove itself more compassionate and democratic, more conducive to its citizens' realization of their potential than the other. The relevant standards could hardly have been more different, but still. In contrast North and South Korea slid quickly into mutual nationalist recrimination, with each side accusing the other of subservience to a foreign power. This (not the over-weighted fact that Ossis and Wessis never clashed on the battlefield) is the main reason Bonn and East Berlin were able to maintain a coldly civil working relationship, routinizing mail service, family reunions, transit, etc, even at the height of Cold War tension.

[T]he support which Kim Jong-un enjoys is not a mere matter of coercion.