Nukes in North Korea?

I want to go on record as one who is skeptical that North Korea actually has a working nuclear device. At the moment it is in their interest as seen through their eyes to "spoof" us on it. They have generated enough smoke with their nuclear programs to make the claim credible but until they either produce a weapon for examination or explode one, I think there remains plenty of room for doubt. It would make sense for them to be playing the rest of the world on their nuclear capabilities. It has a parallel with the situation of Saddam Hussein. He saw it in his interest to appear to have WMD even if he did not in fact have any.