The idea of an accidental nuclear strike occurring has always seemed to me to be extremely likely. It came so close so many times in the past. Can you imagine what a single ICBM warhead that got through missile defence systems could do to a city? To be honest, I'm surprised it hasn't happened already and I think it's the elephant in the room that no one wants to talk about because they think the "red scare" is over or something. I can certainly say I'm considerably, nay immeasurably more concerned about nuclear proliferation than I am about "global cooling/warming/climate changing = our fault; must destroy industry and live in teepees). Anyway, shouldn't the sane world have a responsibility to launch a first strike against the loonies in North Korea before they annihilate us all for starters?