Editorial: Like Chernobyl, Three Mile Island or any other major nuclear accident, Fukushima Daiichi will be with us for decades to come. The entire plant is being decommissioned, a clean-up they reckon could take 40 years. After a disaster of these proportions, when three reactors suffered meltdowns after being hit by a giant tsunami, nothing its operator does or says today is taken at face value in Japan. The ability of the Tokyo Electric Power Company (Tepco) to handle the build-up of toxic water used to...