[quote=@catchamber]
Actually, the worst that the USA can do in a negotiation is watch its President slowly die over the course of 3 weeks after the visit, because he didn't realize that the kimchi had a microgram of polonium-210 mixed into it.
[/quote]

The worst case scenario? This does actually result in the reunification of Korea. Admittedly with millions of casualties in SK and (possibly) Japan.