"My best guess [as to how this ends] is there is going to be a bigger breach than we've already seen — and we suspect there's breaches in the number 2 and number 3 reactors — there'll be a bigger breach, it'll force the evacuation, and we'll see, I think, at least two core meltdowns and possibly two, maybe more, pool fires, and it will end very very badly. That's what I actually think is going to happen. I hope I'm wrong. I hope they contain it.
This will take weeks or months, in the best case, to contain it, to keep that radioactivity in these concrete boxes. And in the end, two, three, four years from now we're going to have concrete and sand mounds, sarcophagi, on each of these reactors, dotting the Japanese shoreline — that's going to be a monument that no one really wants to see."
– Joe Cirincione of the Ploughshares Fund, and anti-nuke organization, on CNN's State of the Union yesterday. Cirincione was discussing the worst-case scenario for Fukushima, which saw a spike in radiation over the weekend.