We do not know for certain what kind of fallout measurements are taking place across North America and our food and water is certainly not being checked properly by the FDA, etc. I am highly suspect of more food than just milk and seafood. The fallout on our fields along with Mexico and other regions could make produce already deadly:
http://online.wsj.com/article/SB10001424052748703806304576233221749626458.html?mod=googlenews_wsj
http://english.kyodonews.jp/news/2011/03/82090.html
The U.S. F.D.A. plays it all down of course: Just remember it's all about money $$$$:
http://finance.yahoo.com/news/Tainted-seafood-fears-spread-apf-166668369.html?x=0&.v=19
"Your papers please!"
http://www.telegraph.co.uk/news/worldnews/asia/japan/8416302/Japan-nuclear-crisis-evacuees-turned-away-from-shelters.html
Don't think for one moment that this is being reported properly. The scope of this disaster has already leeching into the food chain and will spread for us now. If it's not so then lets see some geiger counters!
Do you remember that radiation was being detected on travelers from Japan and surrounding areas showing up at our major airports? If you don't remember click here:
http://thenewsunit.blogspot.com/2011/03/radiation-coming-in-on-flights-and.html
...developing...