Radiation, Once Free, Can Follow Tricky Path

Radiation, Once Free, Can Follow Tricky Path
http://www.nytimes.com/2011/03/22/science/earth/22food.html?_r=1

"Ten days after an earthquake and tsunami crippled a nuclear plant in Japan, officials are detecting abnormal levels of radiation in what may seem like a scattershot assortment of foods: milk from Fukushima Prefecture, where the reactors sit; spinach from Ibaraki Prefecture to the south; canola from Gunma Prefecture to the west; and chrysanthemum greens from Chiba to the south. Shipments of the milk and spinach have been banned."