One third of west coast newborns may have thyroid problems: http://rt.com/usa/fukushima-us-children-thyroid-291/
I know that after Fukushima the Lawrence Lab in Berkeley was tracking and publishing cesium levels in rainfall on their roof and when they started getting really high they stopped. Guvmint must have feared they might panic the public. Oh well. And things aren't so great near my hometown: http://rt.com/usa/hanford-nuclear-waste-tanks-288/ The guvmint did a little experiment releasing isotopes over the population and there was an increase in thyroid cancer around that area in the 1980s. There's even a lawsuit over it. Good thing I didn't like milk as a kid (still don't).