lol i see what you mean, didnt understand at first. Well it is 400 miles aqay but even people 200 miles away arent in much danger, andd those that are close by are only in danger after fairly long periods of time, the ingredients for the algae wafers and so on are proberly only in japan for a very short period of time so even then if they were within that danger zone of 120 miles around the reactors it would only be a serious concern if the wafers took a couple of months to manufactur.
Though glow in the dark plecs would be quite cool