Jane Orient practices internal medicine in Arizona, USA. - The number of radiation casualties from the March 2011 meltdown of Fukushima nuclear reactors stands at zero. In Fukushima Prefecture, the casualties from radiation terror number more than 1,600, exceeding direct deaths from the natural disaster. The U.S. is vulnerable to the same radiation terror as occurred in Japan because of using the wrong dose-response model, which is based on the linear no-threshold hypothesis (LNT), for assessing radiation health risks.