Radiation News Roundup for June 12, 2013 A recent study has found that the level of radioactive cesium in seabed sediment has increase long after the Fukushima accident. enenews.com Radioactive materials from the Fukushima disaster have been spread over the entire northern hemisphere and have recently been found in the southern hemisphere. enenews.com The exact location of the four hundred fifty tons of melted fuel rods inside the damaged Fukushima reactors is unknown. enenews.com A fire broke out on a transformer at the Cattenom nuclear plant in France. enenews.com