[TigerLikesRooster]

Don’t they need time to tweak the device to make it smaller and more reliable? Can they do it in a couple of months?

[Steel Wolf]

I'm sure they are working off of a Chinese or Russian model for their nuclear device (just like the Taepodong-2 is similar to a Chinese CSS-2, etc). Since no one really knows what kind of resources the DPRK nuke program has, we can't say for sure how long it *should* take. But it is entirely plausible that their design won't take long to modify and retest.

We figured out nuclear weapons using pens and paper almost 70 years ago. The North Koreans have a tremendous head start, with modern computers and scientific assistance from other nations, and have already achieved nuclear reactions. They're really just working towards fine tuning now. If they have enough fissile material to burn, they can keep testing every few months until they get it perfect.