Mach Two,
My apologies. I should have explained my thoughts without jesting.
I disagree with your analysis. China do not want North Korea to carry out any attacks. Why would they? China are winning/ have won the economic war already.
I would agree that North Korea might demonstrate their military might at some stage, but not currently. The previous military attacks may well have been the Korean Military making a power play for internal political reasons.
I believe that we have issues of a higher priority elsewhere.