Japan says Fukushima clean-up to take 20 years

Japan's Prime Minister has announced that it will take up to 20 years to clean up after the Fukushima nuclear disaster. It's the first time the government has attempted to indicate how long the operation may take. Emergency measures are already underway to shut down the reactors to prevent further radiation leaks. The Fukushima plant was ruined when it was hit by the earthquake and tsunami in March. Thousands of people have left the area around the facility over safety fears.