World clock until world-end, which is now remains only 5 minutes. Of course it is not correct, that shows risks of world safe by N-weapon. 24 hours describe all human history and it explains only 5 minutes by risks of nuclear issue. 3 reasons are listed – Fukushima incident, terrorism using N-waste, and N-weapon diffusion. N-weapon diffusion includes North Korea and Iran issues, though I guess it also includes USA issue. They are developing new N-weapon and they tested Jan 2012 latest. They are now looking for reusing the weapon in war again. So I feel, USA is the most risky country. So, how about Japan? Japan is also the most risky country. We have earthquake issues and also have “very poorly controlled and really unsafe” N-power stations a lot. We really kill by ourselves in 100 years without any actions. We need to improve N-power stations to very safe – that is our responsibility to would safe.