You may be correct, but it doesn't mean that they can't develop viable nuclear armed ICBMs. The ‘leadership’ of NK lets its people starve (e.g. the recent defector soldier that was found to have parasites in his stomach) while it pursues its nuclear program. The North Koreans and South Koreans are the same people, obviously, with even family members and blood relatives separated by the DMZ. The point being that the highly successful South Koreans, with their advanced level of technical expertise, are the same people as those in North Korea who are working to advance their nuclear weapons program. Don't doubt that they can do it. They most certainly can.
It's about timing, and right now may be the last chance we have to stop this rogue regime from becoming a genuine world nuclear power.
I have to say, we should never, ever again elect anyone to public office whose only claim to the office is that they went to an Ivy League university. That mentality is an absolute recipe for disaster, and seems to consistently select for people who are markedly incapable of running the government. Literally, our children are at risk because of the stunning incompetence of Albright and Clinton.