'Catastrophic' radiation exposure, more blasts at Fukushima nuclear reactor

Japan's Prime Minister has addressed the nation as fears intensify about a possible nuclear meltdown at a power-plant struck by last Friday's catastrophic earthquake and tsunami. The company running the Fukushima nuclear power plant has admitted meltdown is a possibility following 2 fresh explosions at the complex. There are also fears of radioactive leakage with reports of damage to the structure protecting the reactor.