Thanks to Mr. Lewandowski for this (through Mr. DuBrow):
There is obviously much concern about the nuclear reactor leaks in Japan. But while it is natural to be scared of radioactive contamination, it also helps to keep the science in mind as far as the amount of radiation being leaked and how much exposure one receives over time. To help find this perspective, check out the site below. You can see how the reactor leaks compare to average exposure just by being alive on earth, and other circumstances that will be familiar.