gbrumfiel writes: "Two independent reports show that the public and most workers received only low doses of radiation following last year's meltdowns at the Fukushima Daiichi nuclear power plant in Japan. Nature reports that the risks presented by the doses are small, even though some are above guidelines and limits set by the Japanese government. Few people will develop cancer as a result of the accident, and those that do may never be able to conclusively link their illness to the meltdowns. The greatest risk lies with the workers who struggled in the early days to bring the reactors under control. So far no ill-effects have been detected. At Chernobyl, by contrast, the highest exposed workers died quickly from radiation sickness."