The number 4 reactor building fire caused radiation to spike, but readings have come back down. Quoted one expert that they should know something about whether the containment vessel at 2 will hold in the next 24 hours.
Numbers five and six are having pump problems, but have cooled significantly in the meantime. I think it takes on the order of 10 days of cooling to move the reactor to a safe point. Still, according to their sources, a complete failure of cooling and then the worst case scenario are still unlikely.


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