EPA monitoring keeps telling us US radiation levels from Japan are below levels of concern yet they rise. WTF?

Question:

First it was 100,000 times lower than danger levels. Now it is 5,000 times lower than danger levels. What happens at the next measurement?

http://www.epa.gov/japan2011/index.html

Answer:

The situation is hardly static or under control. Nobody knows yet what is really happening within the reactors - at this point there are just educated guesses from what is seen from the outside. Anybody going in there is going to need a million sunblock for this radiation - but the US is not going to be severely affected directly. Fish and other products from the affected area in Japan though will need to be watched.