http://ex-skf.blogspot.com/...
France's CEREA has the simulation map of ground deposition of cesium-137 from the Fukushima I Nuclear Power Plant accident on its "Fukushima" page. It not only shows Japan but also the entire northern Pacific Rim, from Russian Siberia to Alaska to the West Coast of the US to the entire US.
According to the map, the US, particularly the West Coast and particularly California, may be more contaminated with radioactive cesium than the western half of Japan or Hokkaido. It looks more contaminated than South Korea or China. Canada doesn't look too well either, particularly along the border with US on the western half.
I understand that the Fukushima nuclear reactors are still spewing massive amounts of radiation. Shouldn't are national defense spending be directed towards defending ourselves from radiation? I understand that there are solutions to this problem but that all solutions are expensive.