Don't worry about threee nuclear plants failing because Mad Dog tells us so. Mad Dog reads his Internet Wikipeadia irrespective of man-made created disasters based on poor design and structure; because of Mad Dog we are ALL saved.
Meanwhile, the theory of pumping cool seawater into the nuclear reactors to ensure cooling stability (they are adding boron for istope stability) was never predicted in the design and structure. Just a minor technical detail: the seawater pumped in to cool the nuclear plants (threee plants now) must be evacuated; over 100 technicians were killed in the explosions. To cool the power plants takes POWER to run the pumps. Now, throughout, Japan, there are rolling power outages to ensure there is capability to ensure POWER is delivered to the electrical pumps and motors to continue the cooling system. But, don't worry. Wikipeadia is your source of wisdom for nuclear energy nought 101 but 001. I want to thank you for your many posts comforting me and the channel. The evacuation area has been expanded to 30km extending to 200,000 people. Apparently the Japanese have a wee bit of respect about a few flying high neutrinos kicking into the human glands by getting away as fast as possible. Do you think they have original and personal experience about this sort of stuff, circa WW2?