Japan’s Fukushima plant faces danger of overheating

[FBaggins]

49. That's correct - I'm saying that nuclear reactions stopped

And that's exactly what happened. You denying it doesn't change reality. Nuclear decay, however, continues.

The reactors continue to spew radioactivity
Reactors don't "spew radioactivity"... they spew (in an event like this) isotopes that are themselves radioactive. Some of those particles existed before they were ever put into the reactor, and some of them were created in the reactor while it was active, but none of them were created after the reactor shutdown because there was no more fission (apart from the entirely irrelevant to the conversation "spontaneous" fission that has no impact at all).

not even TEPCO knows from where or from what.

??? - Did that make sense to you when you typed it? Of course they know where the radioactive particles come from. There was never any doubt. There's a question of how much of each isotope escaped, but there's no question that the fission that created them stopped.

I'll reword the same simple proof that RE got. Many fission products are very short-lived (and thus very radioactive)... and very easy to detect. Tepco, for all their corporate games, couldn't possibly hide them. Yet none have been detected for years... thus there is no ongoing fission. Q.E.D.