I'm curious as to what the community thinks of North Korea's claim to having nuclear weapons.
I think they are lying. I think they are desperate, economically, and are saying this to bluff China from intervening there.
If North Korea had nuclear weapon capability, they would simply conduct one underground test and the entire world would understand, instantly, they are not bluffing. I find the fact they haven't conducted any tests telling, particularly given the fact they have decided to announce they have the capability and have thus precluded any benefits from proclaiming "innocence".
North Korea is the most desperate country on the face of the earth. I don't believe they have any of the infrastructures necessary to build a nuclear weapon.