AdvertisementPlutonium In Fuel Rods: Cause For Concern?March 16, 2011Dan CharlesfacebookEmailA container of mixed oxide, or MOX, a blend of plutonium and reprocessed uranium, that Japan uses as nuclear fuel for the No. 3 reactor at the Fukushima Dai-ichi plant, is loaded aboard the Pacific Heron ship in the French port of Cherbourg on April 8, 2010. (AFP/Getty Images)