I said I was gonna ignore North Korea, and I still intend to. But I was struck by this comment by proven provider John McCreary in his NightWatch:
During the past 40 years North Korean leaders have been blustery but fundamentally risk averse. They have done nothing that would risk the total destruction of their state -- which means Pyongyang for all practical and symbolic purposes -- until now.... The actions in the past two days represent risk accepting behavior, defiance bordering on recklessness. This behavior began shortly after Kim Chong-il's stroke in August 2008. If Kim is ordering these actions, he has had a personality change, which can occur if dementia follows a stroke, according to medical authorities."