[Sangetsu]

Another thing not mentioned about the Fukushima plant is that the earthquake and tsunami were both greater than the design standards set by the government, meaning that the plant was not designed to withstand either the quake or the tsunami. That the plant was damaged is not the fault of the workers, plant operators, or it's builders. The government standards of the time never considered the possibility of a quake of this magnitude, as none this large had occurred in memorable history. That the plant was damaged is not surprising, what is surprising is that the damage wan't worse.

Current operating plants will have to be upgraded to higher standards, and perhaps the reactors should be upgraded to the newer designs which use natural convection to circulate coolant and do not depend on separate pump systems.