Yea an arms race. Japan may arm themselves since they've had the tech and resources to do so for a long long time,, and South Korea may arm themselves, and China will build more. Just silly stuff.

They're saying that test was a dud since the explosion was miniscule.
But a major problem now is that once they have a working weapon, North Korea could sell the nuclear capable weapons to other nations (Iran), in return for food, resources, w/e.