Most of Japan’s power plants have shut down and are cooling normally, but an emergency has been declared at the Fukushima power plant. There is no damage, but the power plant has malfunctioned. Ian Hore-Lacy, director for public communications for the World Nuclear Association explains what will happen with this state of emergency. “I don’t think it’s going to be a serious danger,” Hore-Lacy says. Daniel Sloan, Reuters correspondent reports from Tokyo.