The Fukushima nuclear reactor plant event, which appears to have lost its backup power supply because it was impacted by a Tsunami isn't just restricted to Japan. Take for example the 4 reactors (2 working and 2 planned) in Florida at Turkey Point.

http://en.wikipedia.org/wiki/Turkey_Point_Nuclear_Generating_Station

A similar result could occur if the site was hit by a Tsunami.

http://www.youtube.com/watch?v=3lwAt-Wg3uI

I am considering it a "Grey Swan" event... Everyone could see the spinning plates, but the "risk assessment" of this perfect storm of events were approaching the "What if Godzilla came up out of the Sea of Japan, an stepped on the emergency generators while getting caught up in the high tension wires.
Every Japanese contingency planner knows things would turn out badly if that happened, but what were the chances/ alternatives???

Don't know if this has been posted elsewhere, but at this link there's a remarkable sound recording of the main quake from an underground monitoring device.

Below that is a video I hadn't seen that's another stunning view of the water pouring into a town.

http://news.yahoo.com/s/yblog_thelookout/20110318/ts_yblog_thelookout/listen-to-japans-massive-quake

A lot of things went right. If they'd set the backup diesel generators up in a more tsunami-resistant way, there wouldn't be much of a story.