[kdog]

* All reactors were shut down at both sites about twelve hours ago. Some of them are still experiencing pressure problems in the containment vessels due to cooling system issues, but the cores are only generating "decay heat" because their control rods are all in place.

* At Fukushima site one, the #1 reactor (the oldest) appeared to suffer some kind of explosion. It turns out that they had vented hydrogen from inside the containment vessel, which was accidentally ignited. This destroyed the cosmetic facade of the building and caused some minor injuries, but the reactor itself was undamaged and the vessel remains intact.

* TEPCO, the power company that runs the facility, is permanently shutting down the #1 reactor (and possibly others) by pumping in sea water. This is literally a permanent shutdown as it will irreparably damage the reactor(s), but the risks are considered too high to do anything else. This is apparently their pre-planned last resort in situations like this, where literally everything else has gone wrong due to something unpredictable like, well, the worst earthquake in Japanese history.

* There has been minor releases of radioactive steam, which is why the surrounding areas have been evacuated. Radiation levels were never very high and are already dropping, although there have been some exposure cases due to bad luck. There is still some worry about the presence of trace radioactives like iodine.

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