So TEPCO's excuse laden report was followed up by an extensive report by an independent committee (itself almost an unknown concept in Japan.

The report is scathing, clearly elucidating the man-made elements of the crisis. It's most scathing crticism is as follows: “What must be admitted, very painfully, is that this was a disaster ‘Made in Japan,’ ” Mr. Kurokawa said. “Its fundamental causes are to be found in the ingrained conventions of Japanese culture: our reflexive obedience; our reluctance to question authority; our devotion to ‘sticking with the program;’ our groupism; and our insularity.”
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We are what we repeatedly do - Aristotle