Did you read the article in Washingtonpost?
The US administration in handling North Korea has been in Paranoid Policy. They just fear they would fail in the same way as it did against Iraq. More important, they overlook the crucial difference between North Korea and Iraq, however. Iraq Helped terror groups, while North Korea has organized and surpervised terrors. Terrorists use violenct actions or military power to get what it want to get. In short, North Korea is a terrorist country.
The US made two mistakes. First, it assaulted Iraq without getting any proof that Iraq helped Al Quaeda to terror on 9/11, finding itself in impasse in Iraq. Second, it excluded violent actions as a choice in handling North Korea only because it failed in Iraq.
I learned in my highschool days one of the good points of the US was the US tried to find what it should or will do not preoccupied with any rule but centering on the right way because the matter you are facing shouldn't be identical with any of the events in the past.
Terrorists, again, use violent actions or weapons to get what they want to get. I don't understand why the US could exclude the choice in handling terrorists as well as take away the name of North Korea on the terrorist group list. I have to say the US is not on the right way.