Everybody is saying the NK "bomb" was a dud. That is simply not possible. Setting one off is like finding ice in Greenland. It's so simple that we didn't even test our first one (Heroshima bomb). IF there is no radio active fingerprint I'd say that they tried to set one off with partially enriched uranium as in 75% instead of 90% or they failed because they were trying to explode a plutonium bomb, something that is very hard to do. However, if you have the 90% enriched uranium all you have to do is slam two balls of it together.

There is always the chance that this guy may be pulling a Saddam, fooling everyone into thinking he had the bomb when all he can get is a partial hard on for America.