June 19th, 2011, Okumamachi, Japan - Steam rises from No. 2 reactor building of the crippled Fukushima No. 1 nuclear power plant in Okumamachi, Fukushima Prefecture, some 210km northeast of Tokyo, in this photo taken by the plant operator Tokyo Electric Power Co. on April 19, 2011. The utility company, known as TEPCO, opened the airlock of the No. 2 reactor building on Sunday, June 18 to ease sauna-like conditions inside so people can work there to cool the runaway reactor which has suffered a meltdown shortly after the plant was hit by an earthquake and tsunami on March 11. TEPCO claimed the venting would not harm the environment. ( 8900)

June 19th, 2011, Okumamachi, Japan - Steam rises from No. 2 reactor building of the crippled Fukushima No. 1 nuclear power plant in Okumamachi, Fukushima Prefecture, some 210km northeast of Tokyo, in this photo taken by the plant operator Tokyo Electric Power Co. on April 19, 2011. The utility company, known as TEPCO, opened the airlock of the No. 2 reactor building on Sunday, June 18 to ease sauna-like conditions inside so people can work there to cool the runaway reactor which has suffered a meltdown shortly after the plant was hit by an earthquake and tsunami on March 11. TEPCO claimed the venting would not harm the environment. ( 8900)