The nuclear disaster unfolding in Japan has all the experts scratching their heads.
I speculate that the plant did not weather the earthquake as well as originally thought. And that the many after shocks have further damaged it, that parts are no longer water tight, so that no amount of pumping power can keep the fuel, spent or otherwise, covered in water.
I wonder about the integrity of the instrumentation. I don't understand how explosions could be a surprise to the crew there.
I totally agree that all plants around the globe should be inspected. We need to learn as much as we can about what happened here to avoid it in the future.