I don't believe anything in particular, that was just one of many potential explanations. That said, I'm not alarmed by the radiation in Japan, I'm more alarme

I don't believe anything in particular, that was just one of many potential explanations. That said, I'm not alarmed by the radiation in Japan, I'm more alarmed about the situation of the Fukushima plant and the problems they face with potential leakage into the groundwater (among other things).