[johnchristopher]

Hmmm. There are many signals already in the nuclear industry that could have prevented a Fukushima.

Fukushima isn't a signal. It's one of the thing that might happens when signals are ignored.

[JBReefer]

Or you could consider it a signal that in one of the most orderly, fastidious, and organized cultures on the planet (probably THE most), people still manage to catastrophically fuck up nuclear, and if the Japanese can't do it, realistically no one can.