Topic - Hidehiko Nishiyama

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  • A worker (left) at a fish market reacts in an area devastated by the March 11 earthquake in northern Japan. (AP Photo/Vincent Yu)

    Japan stops highly radioactive leak into Pacific

    Workers stopped a highly radioactive leak into the Pacific Ocean off Japan's flooded nuclear complex Wednesday, but with the plant far from stabilized, engineers prepared an injection of nitrogen to deter any new hydrogen explosions.

  • A protester in protective mask holds a placard during an anti-nuclear rally in Tokyo on Sunday, March 27, 2011.  The placard reads, "Don't spread radioactive substance." (AP Photo/Itsuo Inouye)

    More obstacles impede crews in Japan nuke crisis

    Mounting problems, including badly miscalculated radiation figures and inadequate storage tanks for huge amounts of contaminated water, stymied emergency workers Sunday as they struggled to nudge Japan's stricken nuclear complex back from the edge of disaster.

  • Nuclear and Industrial Safety Agency spokesman Hidehiko Nishiyama, right, huddles with his aide during a press conference on the crippled Fukushima Dai-ichi nuclear complex, in Tokyo on Friday March 25, 2011. (AP Photo/Kyodo News)

    Japan's government criticizes operator of nuclear plant

    Japan's government revealed a series of missteps by the operator of a radiation-leaking nuclear plant on Saturday, including sending workers in without protective footwear in its faltering efforts to control a monumental crisis.

  • In this photo released by Tokyo Electric Power Co. (TEPCO), gray smoke rises from Unit 3 of the tsunami-stricken Fukushima Dai-ichi nuclear power plant in Okumamachi, Fukushima Prefecture, Japan, on Monday, March 21, 2011. Officials said that TEPCO temporarily evacuated its workers from the site. At left is Unit 2 and at right is Unit 4. (AP Photo/Tokyo Electric Power Co.)

    No quick fix seen at Japan's nuclear plant

    Officials raced Monday to restore electricity to Japan's leaking nuclear plant, but getting the power flowing hardly will be the end of their battle: With its mangled machinery and partly melted reactor cores, bringing the complex under control is a monstrous job that is anything but a quick fix.

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