You won't read/hear about it in this country. Both the Japanese and American governments seem to have agreed to downplay the continuing effects of the nuclear disaster in Japan, as the cloud of radioactivity spreads across the Pacific, the United States, and the rest of the world, lest knowledge of the truth create panic.
(NEW:) As soon as their instruments started showing increased levels of radiation in milk in this country, our EPA did two things: 1) announced they would be testing fallout in the United States LESS frequently and 2) stopped reported their findings to the public.
But you can find out the continuing dangers of radiation to all of us at these two sites:
Effects on Japan: Continuing coverage of disaster in Japan
Effects on the United States: blog.alexanderhiggins.com/2011/05/12