Concentrated Radiation Hot Spots Discovered In Tokyo, Yokohama

Concentrated Radiation Hot Spots Discovered In Tokyo, Yokohama - WSJ.com: "TOKYO (Dow Jones)--Japanese researchers have discovered high levels of radioactive material in concentrated areas in Tokyo and Yokohama, more than 241 kilometers away from the Fukushima Daiichi nuclear plant, as increasingly thorough tests provide a more disturbing picture of just how far contamination has spread and accumulated after the March disaster."