Radioactive cesium detected in newly harvested rice 37 miles from Fukushima Daiichi

The Japan Times has reported that radioactive cesium, at levels of 22 becquerels per kilogram, has been detected for the first time in newly harvested rice grown after the Fukushima Daiichi nuclear catastrophe began, and 37 miles away from the shattered atomic reactors. Rice cultivation has been prohibited within 12 miles of Fukushima Daiichi, thus far anyway. Although the Japanese federal government "allows" or "permits" rice contaminated to levels of 500 becquerels of radioactive cesium per kilogram to be consumed, the article fails to mention that any exposure to radioactivity carries a health risk, and that such risks accumulate over a lifetime, as reconfirmed for decades by the U.S. National Academy of Science (NAS), most recently in its BEIR VII report (Biological Effects of Ionizing Radiation, 7th iteration)