It scares the crap out of me too. But Im still pro nuclear. Im just not pro building nuclear reactors on earth quake and tsunami prone coasts when the reactor is somehow designed in such a way that a flooding cuts off its electricity supply. I still cant wrap my head around that. As I understand it (but correct me if Im wrong), the only real problem was powering the pumps.  How hard can it be to put some generators in a shelter that can withstand just about anything?