[...]I also met with Bob Alvarez in Washington and we talked for several hours. I thanked him for his calculation of Cs-137 at Fukushima Daiichi site; the simple figure has helped draw the public’s attention to the issue. Mr. Alvarez said that the figure of a ten times Cs-137 at Reactor 4 compared to Chernobyl is low, but is useful to avoid scientific arguments; a higher figure might be 50 times, which means that [Fukushima Daiichi's total Cs-137 inventory of] 85 times greater than Chernobyl might be an underestimate as well.
But it doesn’t matter, Alvarez said, whether the magnitude is 10 or 20 times greater at Reactor 4. The Cesium-137 in Reactor 4 would cause all of Japan’s land to become an evacuation zone, the strong radiation would affect East Asia and North America, and the radioactive material fall out would remain there for several hundred years. He asked me if Japanese leaders understand this. My answer is, yes, they understand it in theory but not in a practical sense. Prime Minister Noda, the sixth premier in the past five years, does not have the political power to make a decision to request the Independent Assessment team and the international technical support teams outside of TEPCO.