Fukushima's 'cold' reactors pose a constant threat

Fukushima's 'cold' reactors pose a constant threat
CNN
By Hilary Whiteman, CNN (CNN) -- Twisted metal beams still jut from the top of Japan's Fukushima Daiichi stricken reactors, almost one year after a massive tsunami triggered nuclear meltdown. They remain as an eerie monument to the country's worst ever ...