The Japanese authorities, like the Britihs ones on Sellafield, have been criminally irresponsible, that is true.
As I've often said, I am sick fed up with moronic stupid bastards maing decisions based on "bean counting" rather than common sense.
for example, those arseholes in Japan knew there had been 2 previous huge tsunamis, 890AD, 900BC?? somehting like that, they figured since only 1:1000 year risk they didn't bother buidling the back up generators etc above such water levels
criminal stupidity. these events DO happen there, the life time of a single plant is at least 25 years, they had 6 reactors there...
now, they had built the plant far better than the British had at sellafield, ntoe the huge safety cages aorund the colling towers, so the plant could sustain a severe earthquake, but more could have been done
As for asteroid impacts. hey folks, if you had an asteroid strike big enough to hit say many US reactors...it would be an Extinction Level Event, we'd be wiped out anyway
targetting reactors with a nuke was one serious worry in Cold War (and today even), but again, that would be Mutually Assured Destruction
note it would take a thermonuclear weapon, ie a megaton class wepaon, to breach them due to accuracy issues, a terrorist would have to plant a fission bomb inside or against the reactor building to breach it
if we don't have power, our civilizations FALL.
I am very aware of how bad nuclear pollution is, assholes at Sellafield dumped os much crap the farmers in Ayrshire can no longer use seaweed as fertilizer as it's contaminated, ugh
And look at the lake at Mayak, lethal dose within 15 minutes, death anyway if you inhale the dust at all.
Sigh
but then look at Iraq and Afghanistan, wars over lies, reality was for oil and gas profits for the corporations/mega-rich, not our security, see how many lives they have claimed... :/