TEPCO says a faulty temperature gauge may be behind higher readings . Comment: The plant was declared to be in `` cold shutdown '' on December 16 . `` In the worst case scenario , if they were to completely lose injection and lose the cooling impact , the water in there would heat up and at some point it would begin to boil . Earthquake and tsunami caused nuclear chaos in Japan last March .
TEPCO says a faulty temperature gauge may be behind higher readings . Comment: The plant was declared to be in `` cold shutdown '' on December 16 . Earthquake and tsunami caused nuclear chaos in Japan last March .