Kyodo News:
Fresh coolant injected, high-radiation water leaks in nuke crisis | Kyodo News: Tokyo Electric Power Co. said Friday it has begun injecting freshwater into the No. 1 and No. 3 reactor cores at the crisis-hit Fukushima Daiichi nuclear plant to enhance cooling efficiency, although highly radioactive water was found leaking possibly from both reactors as well as the No. 2 reactor. The latest efforts to bring the troubled reactors at the plant under control are aimed at preventing crystallized salt from seawater already injected from forming a crust on the fuel rods and hampering smooth water circulation, thus diminishing the cooling effect, the plant's operator said. The utility known as TEPCO is also preparing to inject freshwater into the No. 2 reactor core.
But a day after three workers were exposed to water containing radioactive materials 10,000 times the normal level at the turbine building connected to the No. 3 reactor building, highly radioactive water was also found in the turbine buildings of the No. 1 and No. 2 reactors. The latest development in Japan's worst nuclear crisis raises the risk of more workers being exposed to radioactive substances, hindering their efforts to restore the plant's crippled cooling functions that are key to overcoming the crisis...
