[justa-hairyape]

I speculate, with no real facts to back me up...that the reason we are seeing this massive data dump revealing what SOME here suspected long ago...is that the big money involved has had time to protect themselves as best that they can....and now people are finally going to get the info so that they realize just how bad it was and that TEPCO and Kan knew it.

Now that makes a lot of sense. Always follow the money.

The reasons there were explosions in #1, #2 and #3 was because the cores melted. That is what created the Hydrogen. So losing the buildings at that point was mute. IMHO.

[RummyChick]

here is an interesting analysis

http://allthingsnuclear.org/

“It’s worth noting that modeling of the crisis indicates that meltdowns should have occurred at all three reactors (1. 2, and 3), given the length of time they were all without cooling. The modeling also suggests that without cooling the molten fuel would have melted through the bottom of the reactor vessel about 7 hours after the fuel relocated to the bottom of the vessel. TEPCO says that cooling water was injected in to prevent this. According to Figure 1, the injection of cooling water started about 10 hours after the water level dropped below the bottom of the fuel in the reactor”