There were 2 experts on there. Both thought it is probably worse than what Japan is letting on. Nye said it is probably going to be worse than Three Mile Island, because significant radiation has already leaked. At the time, they cooling the core with ocean water, which is not the pure water that should be used. They were also dumping Boron on it and they didn't quite know what the purpose of that was.
I don't know what's happened overnight. I'm kind of scared to look.