Follow latest updates at twitter.com and www.facebook.com Japan has declared an emergency alert at another nuclear power plant in the north-east of the country. Radiation levels of about 700 times higher than normal have reportedly been detected at the facility in Onagawa. Authorities are currently investigating their source. For more opinion on the threat of a nuclear crisis in Japan, RT talks to Harvey Wasserman, who's written on the subject of a sustainable green-powered Earth.

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