The lack of attention to possible land contamination is a major gap in the American system of nuclear safety regulation. After Fukushima, it should be the main safety concern — and one that is not addressed by evacuation, no matter how efficient….
The essential characteristic of this technology is that the reactor’s uranium fuel — about 100 tons in a typical plant — melts quickly without cooling water. The containment structures surrounding the reactors — even the formidable-looking domes at Indian Point — were not designed to hold melted fuel because safety regulators 40 years ago considered a meltdown impossible.
They were wrong, and we now know that radioactive material in the melted fuel can escape to contaminate a very large area for decades or more.
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