[Advertisement] Jim Lounsbury: A simple mechanical accident at 4:00 in the morning last March at Three Mile Island touched off the worst accident in the history of American nuclear power.

Three Mile Island’s Unit 2 reactor had partially melted down that morning, releasing dangerous radioactive gases into the atmosphere and triggering a panic that would grip the nation for days ...

Retired Colonel Oran Henderson, the head of Pennsylvania's Emergency Management Agency, informed Thornburgh of the incident at Three Mile Island on the morning of March 28, 1979. "The minute I ...