http://www.msnbc.msn.com/id/42206728/ns/world_news-asiapacific/

Clarifies things a bit with a simple graph.

The reports of radiation contamination in the sea near the plant is causing concern. Seafood is to be tested. Whether or not the readings are dangerous, consumers will avoid Japanese seafood.

Re: the plants. Will any of them be usable after all the seawater that has been pumped into them? I thought the corrosive effects would be permanent? Anyone know?
Mary