I asked the fish guy at my local grocery store about people's buying habits since the Japan Earthquake and subsequent breach at the nuclear power plant. It did report some poison and contamination leaking into the Pacific Ocean.  He told me people are starting to ask where the fish is coming from.  Losts for Indonesia and Thailand.  I am buying Atlantic Fish and Great Lake Fish.  I will but Canadian as well.   I really wanted some Alaskan Walleye but just couldn't do it.  I don't know any of the guidelines on what's safe, and what's not safe, so I am going on common sense for now.  See how close it is to the ocean...