The Chinese government is always a bit careful to not upset the populace simply because there is a massive population who have been known to revolt before, there is no way the government would survive such a revolt.
I'd think Japan must be getting more than tired of this crap by now but they have no missile capability of there own to retaliate with. On the other hand turn the JSDF loose and Kim will be shitting in his pants - I've exercised against those guys, bloody good warriors.
You are dead right on sarin Cybes - I'm not about to publish the recipe but it is easier than the meal I'm making tonight...
Probably why the Yanks nuked Japan twice to end WW2.
I was in a think-tank that discussed that once. Conventional thinking had it that nuking two cities saved an invasion, less conventional said that having spent all that time and money on the Manhattan Project they had to use them.
I tend to the latter, but I'm well on the record for wishing they hadn't - courtesy of living around nukes I quite literally tick, it is quite possible you do as well, it sort of depends how old you are. In the days of my youth they were still doing open air nuclear tests and the fall-out was carried clean around the world, in both hemispheres several times.
Then I lived around the things in the forces, I seem to be pretty resistant but I avoid X-Rays these days :)