Comment Re:Can be safe, but safety engineering is hard (Score 1) 1148
From what I've read (and not on Wikipedia), without active cooling the core would melt down but that would simply result in a pool of molten-but-slowly-cooling material at the bottom of the reactor, with no more radioactivity released to the environment than now. The plant operators are trying various ways of cooling it down mainly in order to salvage precious materials so that the reactor can be restarted (after due inspections and cleanups, in some years).