So you shut down the reactor (for whatever reason) and lose electricity.<quoted text>
Four things had to happen for Fuku to happen, had any one not happened we wouldn't be talking about it. Beyond design capacity earthquake and tsunami, loss of off-site power, and loss of back up generators. Even then it would have been contained to to a mere financial disaster had Tepco officers not been so afraid of fines, sanctions, and the regulator's ire that they wouldn't vent the hydrogen that was accumulating in the Reactor Buildings. The reactor vessels performed despite the severity of the circumstances, it was humans that fcked the pooch. Meanwhile, since the disaster the entire US fleet's being retro-fitted with the lessons learned from Fuku.
Now what? From what I can see, still the same results.