I believe the traditional thing to do under those circumstances is to invade someone who does.
They tried that with the USA, didn't work out so well.
To be fair to the reactor design, it was at least as much a problem caused by inept risk management as it was anything else including reactor design (Not that I am a big fan of boiling water plants), see also the regulators being way too far in bed with the industry.
Keeping the fuel in the cooling ponds because that was cheaper then shipping it to be processed was one of those poor decisions, as was not venting steam to control reactor pressure given the rather inadequate feedwater pumps they had available after the wave hit (The steam would have been radioactive, mostly 16N (Half life 7 seconds decays to oxygen 16 which is stable by beta emission) which is really not a big deal.
Dumping steam contaminated with nitrogen 16 to atmosphere would have lowered pressures and made pumping in sufficient sea water to keep the fuel cladding intact rather easier, and the half life is so short that it would all have decayed completely within 10 minutes.
That piece of ineptness was down to a boardroom decision (The chief engineer on site apparently wanted to vent, the board wanted time for PR to spin it), by the time the go ahead was given the fuel cladding had melted making it a non starter (Lots of nasties in the water by that point), and even venting to the containment was problematic due to H2 from the watergas reaction with the cladding (This caused several hydrogen explosions).
Nuclear accidents will probably always be one of those low probability things, still rather have a nuke in my back garden then a coal fired plant....
Interestingly, there was another nuclear accident which came so close to making most of the northern UK uninhabitable that does not much get discussed, the fire at Calder Hall.
It was a purely plutonium producing reactor (Not even a nod towards power production), graphite moderated, AIR COOLED!, well of course you have red hot graphite with air being blown over it by big fans, what could possibly go wrong? Yep the thing caught fire....
The only thing that saved us was that the filters in the exhaust stack were at the TOP of the chimney.
Scarily they extinguished the fire with WATER, that could have gone **REALLY** pearshaped.
You can see the chimney and core containment building on google earth at 54:25'27.86N, 3:30'02.09W, but the whole site is fascinating (You can see what I suspect is a uranium enrichment cascade at 54:25'09.29N 3:29'31.88W, together with the huge power supply towers (The site actually has several very large overhead feeders).
Regards, Dan.