Very interesting read. I did a double take that a lack of Cesium-137 meant "post-1980" (not "pre-1980") since the levels have dropped off since the testing in t

Very interesting read. I did a double take that a lack of Cesium-137 meant "post-1980" (not "pre-1980") since the levels have dropped off since the testing in the 50s and 60s.