"Cold shutdown", as Kyoto University's Koide has repeatedly said, assumes the Reactor Pressure Vessel intact, and the fuel rods intact. There is no word for bringing the broken reactor with totally melted fuel into a stable condition so that it won't emit any more radiation. There is no established process to do that, particularly when the melted jumble, corium, is possibly eating away the concrete beneath the Containment Vessels.
As long as TEPCO (headquarters) and the Japanese government are fooling around with the impossible idea of "cold shutdown" of the reactors that are broken, with the corium already outside the Reactor Pressure Vessels, or Containment Vessels, there will be no end in sight, I'm afraid.
NOTE: Who are we kidding, how is cold shutdown possible with broken reactors and stored fuel rods?
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