The MCC has also concluded that commercial reactors of the type now used in the United States have a sound safety record , even considering the accident at Three Mile Island ( TMI ) , and that there is no credible evidence that there has been harm to health by these reactors . MCC further concluded that the hazards of transporting used nuclear fuel have been badly exaggerated , and that recent proposals about the storage of used fuel will reduce the technological difficulty of construction a long-term repository
accident at Three Mile Island
Three Mile Island accident
Maryland Conservation Council