In a way, it's like the first person to climb Mount Everest, or the Matterhorn.  It's incredibly difficult, almost impossible, the first time.  But thereafter it becomes easier.  The knowledge disseminates, spreads around, so to speak, even through non-classified periodicals - common knowledge.

Yes, their "nuke" is probably huge.  But if they acquire information from other countries, like Pakistan, for instance, they might somehow be able to bootstrap themselves forward a bit.  That is the problem!

Now it's reported that the Communist Chinese are planning a demonstration of their own.  Why?  Is this in support of fatso's regime, or is it a not-so-subtle threat against north korea.  You know, a sort of "behave, or this could happen to you" comment.