A few weeks ago, I was struck by the careful wording of one of the TV news readers. She said something to the effect of, ‘According to the Japanese government, there is very slight elevation of radiation levels around the damaged reactors, not enough to impact human life.’ Then later in the newscast, she said virtually the same thing, but added, ‘However, the American government hasn’t, so far, been able to get its own people close enough to take measurements.'
In other words, don’t trust what you are hearing.