Traditionally, "cold shutdown" has meant that there is an intact reactor, the control rods have been inserted to stop fission, and the temperature associated with decay heat is below the boiling point of water.
The Japanese government is saying that the Fukushima reactors will be in "cold shutdown" soon.
Is that appropriate?
The latest long term estimates for Fukushima cleanup is 40 years. This article has an embedded video with some good, but brief, footage of the carnage.
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