Hearings begin on third Calvert Cliffs nuclear reactor

At 4 a.m. March 28, 1979, the main pumps feeding water to a cooling system at Three Mile Island Nuclear Generating Station failed.

The resulting chain of events became the largest nuclear disaster in the nation’s history. No deaths or injuries were reported, but political and social fallout from the incident brought development of nuclear power to a screeching halt for the last 30 years.