U.S.: Next 48 Hours Are Critical for Japan

Japan must get the Fukushima Daiichi nuclear plant under control in the next 48 hours or face a situation that will be “deadly for decades,” a U.S. official tells ABC News. "We are all-out urging the Japanese to get more people back in there to do emergency operations there, that the next 24 to 48 hours are critical," the official says. "They need to stop pulling out people—and step up with getting them back in the reactor to cool it. There is a recognition this is a suicide mission.” Japanese military helicopters have begun dumping water on the overheating reactors and fuel rods.