The highlights for me: there have been "pieces of fuel rods" - found
up to TWO MILES away from the power plant.
Uranium, Plutonium, and Americium-have been captured
out of the air- in the continental USA.
And while Arnie won't say so quite yet; I don't see any
"alternative hypothesis"to the one that says there was a
small atomic explosion in the spent fuel pool at #3.
That's what "criticality" means. Enough uranium got pushed together
to start a chain reaction. When that happens outside a nuclear bomb,
the explosion quickly blows the uranium apart, and the reaction
stops. Most of the difficulty in building a good big bomb is
figuring out how to hold the uranium/plutonium together long
enough for a "good" energy yield.
If you're in the mood for more real information on all this;
the NYT has a good one up, about internal management
practices in the Japanese nuclear industry (and ours.)