Three Mile Island nuclear plant automatically shuts down

A malfunctioning pump caused an automatic shutdown of the Three Mile Island nuclear power plant near Harrisburg on Thursday, the second such event in as many months.

Plant officials and government regulators said the shutdown at the plant, where a partial meltdown of a reactor in 1979 is considered the worst commercial nuclear power plant accident in U.S history, posed no threat to public health or safety. Pittsburgh Post-Gazette