<prompt> Bhala ukuqhubeka kwalesi sigaba - UFrank N. von Hippel wabhala ngoMashi 2011, ukuthi naphezu kwengozi yaseThree Mile Island ngo-1979  <response>: ePennsylvania, i-NRC ivame ukuba namahloni kakhulu ekuqinisekiseni ukuthi ama-reactor ezentengiselwano aseMelika asebenza ngokuphepha: 