This is a slam dunk for Condi and the US.
By now Condi has explained the following to Chinese authorities:
Are you having trouble controlling your rogue state North Korea?
What a coincidence! We are also having trouble controlling our rogue democracies.
It looks like Japan may also prolif.
Who knows rogue South Korea may also prolif.
It looks like Taiwan also has some interests in this area. And as you know, it is very hard to control these rogue states. END OF COMMUNICATION
Rest assured, China has gotten the message and Kim Jong Il's days are numbered. I would not rule out Chinese assasination. Cutting of the oil is probably the mildest of solutions.
Anyone remember the "train accident" a few years ago, where the Dear Leadeer's train blew up, but he wasn't on it, or some such?