Fair enough, Clive. Part of the problem with the article is that he doesn't particularly make clear with what aspect of the North Korean coverage he is disagreeing with.
With regards nuclear weapons, in order for any leadership to regard death and destruction as a 'noble cause', I find it highly unlikely. It's very easy for a transnational terrorist organisation to engage in that sort of behaviour, as they don't - by definition - face the same threat of total extinction as a sovereign. If a sovereign state were to launch a nuclear weapon, their leaders would have to be not only irrational, but entirely suicidal given the consequences. Nuclear weapons provide an absolute deterrent, but - in the absence of a leader with a head full of acid or something along those lines - are not a particularly offensive weapon.
I think the two holes in the argument are potentially:
a) an extremist organisation somehow obtains a nuclear weapon. I find it hard to fathom why North Korea, Iran, or any other country would dole out a nuclear weapon given that if a terrorist organisation were to launch it, the consequences would probably be just as catastrophic as if the sovereign themselves had launched it. If Hezbollah managed to launch a nuclear device against Israel, the consequences for Iran would be dire.
b) a leadership change/power struggle/coup. A significant concern in apparently 'unstable' nuclear armed states (eg Pakistan, North Korea). To some extent these risks are inherent in nuclear states I suppose (which isn't a particularly strong defense, but is outweighed by the deterrent aspect of nuclear weapons). In any case, prospects for non-proliferation are extremely limited at this stage; in my view at least it's undesirable, impossible, and potentially destabilising.
Been a while since I thought seriously about this sort of stuff, but it's fascinating nonetheless.