North Korea claimed that it detonated a nuclear bomb on Sunday. I don't understand the reasons behind all the criticism. Yes, it may illegally smuggle drug, weapon or military technology to other countries or organisations but these activities has no direct relationship with whether NK has nuclear weapon or not. That is to say having nuclear weapon does not necessarily increase the level of these illegal but unproven activities. South Korea is enjoying the military advantage, thanks to the US, for almost twenty years. NK possessing some nukes simply put both sides closer to a balance, although this is a volatile balance. However if the US, UK, Russia, China, India, Pakistan and France have rights owning nuclear weapon, what makes NS does not? Are these countries really playing responsibly? I personally doubt it. Yes, we all hate North Korea (how can anyone like Kim Jong-il?) but we need a solid reason to object its having this kind of weapon.