The situation at the Fukushima Power Plant in Japan continues to worsen. U.S. Media is reporting that water levels are dropping in more than one of the six reactors at the plant, leaving nuclear fuel rods exposed. The United States Nuclear Regulatory Commission has warned that Japanese regulators may be downplaying the risk of radiation levels at the plant; and the commission has advised that Americans evacuate the area within 30 miles of Fukushima. Joining us for an analysis of the situation at hand is David Biello, associate editor for Environment and Energy for Scientific American.