Scientist: Cesium sank 20 cm in Tokyo Bay mud
Fukushima No. 1 nuclear power plant
TEPCO struggles to cool Fukushima plant's No. 2 reactor
Students to run in month-long relay to Fukushima
Temperature rises sharply at Fukushima reactor
Liability fund approves additional funding to TEPCO
Japan wants in on nuclear accident compensation pact
NISA compiles 30 requirements for nuclear plants