It is funny how much calmer (South) Koreans are about this recent dust-storm than Americans who seem to think this is the same as launching cold war nukes already. That said, this does feel a bit more serious than normal. I lived through tensions between DPRK and ROK rising just outside of Seoul. Americans freaked out, Koreans only got tense during the Yongpyang Island shelling. Anyway, Mr. President does seem a bout more loose cannon than normal, but even he has tried to calm talk of pre-emptive strike. The NYT has a good article on it, and China's complicated towing the line recently.