CNN just interviewed Bill Nye the Science Guy re the exploding Japanese reactor. Nye stated helium is sometimes released but apparently he never heard of hydrogen being generated inside a runaway reactor- water comes apart under high intensity radiation to make hydrogen inside the reactor. That is why the H2 bubble inside the Three Mile Island reactor forced water down uncovering the core which "slumped": TMI had no little tube with a valve up inside to let the H2 out.
Ditto here I betcha. Why didn't they have a large water tank up on a hillside to flood the reactor- no electricity involved????

Oh Well, U.S. Rep. Michelle Bachman doesn't know the difference between Concord NH and Concord, Mass.