In this Tuesday, March 5, 2013 photo, bags of radiation-contaminated waste sit 

In this Tuesday, March 5, 2013 photo, bags of radiation-contaminated waste sit in fields in Naraha, just outside the exclusion zone surrounding the Fukushima Dai-ichi nuclear plant in Japan. Decontamination efforts have begun in the town but resident have not been allowed to return for more than brief visits. Two years after the triple calamities of earthquake, tsunami and nuclear disaster ravaged Japan's northeastern Pacific coast, radioactive and chemical contamination remains a threat as clean-up projects face troubles with organized crime and mishandling. (AP Photo/Greg Baker)
Associated Press
In this Tuesday, March 5, 2013 photo, bags of radiation-contaminated waste sit in fields in Naraha, just outside the exclusion zone surrounding the Fukushima Dai-ichi nuclear plant in Japan. Decontamination efforts have begun in the town but resident have not been allowed to return for more than brief visits. Two years after the triple calamities of earthquake, tsunami and nuclear disaster ravaged Japan's northeastern Pacific coast, radioactive and chemical contamination remains a threat as clean-up projects face troubles with organized crime and mishandling. (AP Photo/Greg Baker)
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