Hmmmm, was this really a black swan? Both strong earthquakes and tsunamis have been hitting Japan for eons, that a strong earthquake could trigger a very powerful tsunami is simply "A" followed by "B". We're now watching Japan struggle with "C". They knew strong earthquakes could happen and that a powerful tsunami could follow. This should not be considered a black swan.

Faked testing reports on back up cooling for a group of nuclear reactors? Back-up diesel generators sitting by the ocean that can't handle a tsunami. Somewhere in the inadequate back-up design and faked reports is the black swan.

Compare Fukushima to San Onofre sitting between San Diego and Los Angeles (near Camp Pendleton) on the Pacific coast -- Earthquake? Tsunami? It's time to test the back-up systems. . .