Comment Re:already done (Score 2) 133
Go read WASH-1400, that one said 36 years before Fukushima Daiichi what would happen when a tsunami hits a nuclear power plant. The predicted result is easily comparable to what we have seen, because Japan (just like the USA) didn't bother to implement major upgrades that were demanded by law in France, Germany and Sweden. Among those are hydrogen recombiners that the Japanese demanded by law in 2012 and were bought in France where they have been implemented for decades. You may remember the hydrogen explosions? Those were predicted. The same countries also installed filtered containment vents. Which would, by themselves, have prevented uncontrolled venting into the reactor buildings, they would have filtered out 99.99% of the Cs and they also have hydrogen recombines by default. In Germany those were required in 1988, Japan followed in 2013. Japan managed to require all reactors to have at least 2 emergency generators for each reactor in 2002 (before that 3 emergency generators were sufficient for 2 reactors). By comparison, at the same time, Germany required at least 2 WORKING emergency generators for each reactor, even if one generator is out for maintenance and another breaks down due to some technical fault. In other words, they required at least 4 generators and even more, if some of them were put in a place were they might fail due to some other causes (like flooding or a plane crash).
There is no tsunami risk in Europe. But nuclear power plants must be protected against 10.000 year floods. Fukushima Daiichi (along with all the coastal cities) was protected against a rather small tsunami that hit Japan in 1960 and nobody bothered that there were larger tsunamis in 1933 and 1896 (and many more before that).
It's not about hindsight. It's a matter of a complete lack of disaster planning in Japan, which is why you had almost 20.000 dead and 400.000 lost homes (that latter figure is without the additional evacuations due to the reactor accident).