"Three of Fukushima Daiichi's six reactors were in operation when yesterday's quake hit, at which point they shut down automatically and commenced removal of residual heat with the help of emergency diesel generators. These suddenly stopped about an hour later, and this has been put down to tsunami flooding by the International Atomic Energy Agency (IAEA)."
Perhaps building reactors in a tsunami prone area was not such a great idea? They obviously thought they had this covered and the diesel and generators were isolated from the water? Wouldnt you have a back up for the back up i.e batteries?
