The operator of Japan's stricken nuclear plant initially says radioactivity in water in the Unit 2 reactor tested 10 million times higher than normal, forcing the evacuation of workers. But hours later Tokyo Electric Power Co. apologizes and says the number should be 100,000 times _ still very high. The air in Unit 2, meanwhile, measures 1,000 millisieverts per hour _ four times the limit deemed safe by the government, it says. TEPCO is struggling to pump the contaminated water from four troubled units at the overheated Fukushima Dai-ichi plant. Japan's nuclear safety agency had warned Saturday that radioactivity inside the units was rising fast and that extracting the radioactive water was a priority more than two weeks after the massive earthquake and tsunami. The official death toll from the disaster stood at 10,668, with 16,574 people listed as missing, police say.