The Cataclysm in Japan.

“‘I saw people trying to balance on the rooftops like surfers,’ she said. ‘It didn’t work. It was like hell.’” Boston’s Big Picture offers a survey of the horrifying images out of Japan since the earthquake/tsunami double-whammy of last Friday. [Part 2, Part 3.]

‘It’s way past Three Mile Island already,’ said Frank von Hippel, a physicist and professor at Princeton. ‘The biggest risk now is that the core really melts down and you have a steam explosion.” And, in unfortunately related news, an animated infographic at the NYT explains exactly what engineers are trying to avoid at Fukushima Daiichi right now. (It’s not as bad as you may have heard, but, Lordy, it’s not good.)