WorldJapan nuclear crises: Radiation level equivalent to 10pc of Cehmobyl accidentAgenciesApril 12, 2011April 12, 2011 by AgenciesApril 12, 2011April 12, 2011 Fukushima: Japan has raised the security level of the crippled Fukushima No.1 nuclear power plant to 7, the worst on an international scale. Japan’s nuclear...