Looks like the Building cladding went

Looking at the video of the explosion at the Fukushima plant and the image afterwards I think that the outer building has lost all it's weather proof cladding as all I can see is a steel framework.

This picture on Boing Boing shows a neat line of 4 reactor buildings and a line of turbine halls.

I hope the explosion was inside the weather proof building but out side the reactor's pressure vessel.

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