On July 15, 2011, Japan's government considers halting all beef shipments from Fukushima Prefecture after meats were discovered to be tainted from feed that contained more than 300 times the legally allowed levels of radioactive cesium.

http://www.bloomberg.com/news/2011-07-16/aeon-says-its-supermarkets-sold-radiation-tainted-beef-to-
customers.html
http://www.smh.com.au/world/japanese-beef-contamination-widens-20110715-1hhye.html
http://www3.nhk.or.jp/daily/english/14_39.html
http://www3.nhk.or.jp/daily/english/14_39.htmlhttp://en.rian.ru/world/20110715/165207808.html