To be fair, if everyone gets together and works out why the pumps seem to be failing so easily, it can only help Japan have safer pumps in the future.
Haven't like 6 of the reactors in the two main plants had trouble cooling, though only 2 have had serious issues, and another pump has failed. I mean frankly as Rroff has been saying they've been designed well and its a testiment to the quality that they all didn't just flatten like pancakes after a 9.0 quake and a ridiculous Tsunami, but theres only so much you can do and so much you can theoretically work out.
Theres nothing wrong with checking the safety, especially of older plants as maybe these ones in Japan from the early 70's should have been replaced by now with newer better designs. Then again newer doesn't always mean suitable, just because theres some newer safer(in normal conditions) design for nuclear plants doesn't mean its a type suitable for withstanding near constant earthquakes and could be worse than other designs against Tsunami's.
I said pages earlier, at some point you have to weight reward vs worst case scenario. In Japan the chance of 8+ quakes and Tsunami's is exponentially higher than say, the UK, or a lot of Europe, etc.
Maybe the world needs to get together and say, we'll have more nuclear plants in sensible locations and subsidise coal plants elsewhere.
IE the uk gets two more nuclear plants instead of Japan and Japan opens two more coal plants, and together the countries try to hit emissions limits and power output, etc.
China shouldn't have any nuclear plants because its China, I just don't trust them to build safely and not on the cheap as they generally don't seem to give a crap about population health/rights, just price/speed/quantity.