and we're joined by arjun makhijani, an engineer specializing in nuclear fusion.s the president of the institute for energy and environmental research. and kenji kushida, research associate in japanese studies at stanford university. arjun makhijani, let me start with you. translate for us first to bring us up to date. what exactly is the problem now and how serious is it? >> so there are a couple of different problems. one of the problems is what they've found in the groundwater, what actually is there. so, so far we've been concerned about an element call cesium 137 and 134, which is radioactive. but now they have found strarchum 90, which is much more dangerous, at levels that are 30 times more than cesium. so to give you an idea of the level of contamination-- if somebody drank that water for a year, it would almost-- they would almost certainly get cancer, so it's very contaminated. so that's one problem. the other is the defenses to hold back this water from the sea seem to be overcome. so now the contamentd waters, 70,000, 80,000 gallons is flowing into the