At this point, any finger pointing needs to be pointed at Clinton for giving them the technology to build these nukes.
I don't know how much technology Clinton gave them, but I know how long we've held power in Washington and did nothing about N. Korea. We've had six years to formulate a strategy to deal with NK, and that's a long time to be in power and still blame the previous Administration for today's problems. Maybe the first couple of years it works, but not now, six years into power. N. Korea could have, (and should have), been dealt with by Bush years ago. He knew this was coming, he labeled them as part of "the axis of evil". But still we did nothing.
He didn't. Blame Pakistan, the Soviets, and the Chinese.
More recently, blame the South Koreans (the KDJ and RTW administrations) and the Chinese for harboring the viper. US hands have been tied (other than in case of a truly grave and imminent crisis) for nearly a decade.
Clinton didn't do what he could have when he had a chance to, given a cooperative South Korean government of the day, but thats water long under the bridge.