yep, it is getting hot.
Japanese reaction to this could change the entire situation. Actually, I suspect Japanese LDP establishment let Chia Head carry out all the way to 2nd nuke test and respond with an undoing of their post-war set-up. Or Obama capitulate badly to Chia Head before that, and make Japan furious. Either way, they could invite a dramatic change in Japan. Peace constitution, and non-nuke pledge could be gone. Japan gets more assertive.
What would China do when this happens? They had better do something more than just getting scared.