Fukushima nuclear reactor 3 in “cold shutdown” but boiling!

(Source) http://nuclear-news.net/2013/07/26/fukuxshima-nuclear-reactor-3-in-cold-shutdown-but-boiling/

BBC: It’s boiling somewhere inside Fukushima Unit No. 3 — Reactor supposed to be in cold shutdown — Situation ‘worrying’ http://enenews.com/bbc-boiling-inside-fukushima-unit-3-reactors-supposed-be-cold-shutdown-situation-worrying

Title: Fukushima nuclear plant: Japan takes steps over sea leak
Source: BBC News
Date: July 23, 2013
h/t Anonymous tip
[...]  (Tepco) said steam was seen around the fifth floor of the building housing Reactor No 3 [...]

It is not clear what is causing the steam [...]
The sight of steam rising is worrying because it means somewhere inside the reactor building water is boiling, says the BBC’s Rupert Wingfield-Hayes in Tokyo.

Th badly damaged reactors are supposed to be in what is called “cold shutdown”; the temperature of the cooling water inside the reactor should be well below boiling point.
It is another sign that Tepco still does not fully know what is going on inside the damaged reactors [...]
See also: AFP: ‘Fukushima reactor site engulfed by steam’ — Kyodo: ‘Something like steam’ coming from unknown source at Unit No. 3 — Tepco: ‘Continuously wafting through the air’ — Work to remove rubble suspended