"Three Mile Island Nuclear Plant Shuts Down Unexpectedly"

"Three Mile Island plant, scene of the worst nuclear power accident in the US, shut down automatically after failure of a coolant pump. Officials say the Three Mile Island shutdown poses no threat."

"MIDDLETOWN, Pa. -- A malfunctioning pump at the site of the worst nuclear power plant accident in U.S. history has triggered an automatic shutdown.

Thursday's shutdown at Pennsylvania's Three Mile Island was the second in as many months. Government regulators and plant officials say it poses no threat to public health or safety. Operator Exelon Generation Co. says no detectable levels of radiation escaped. ...

The plant also automatically shut down Aug. 22 while operators were manually shutting it down for repairs."

The Associated Press had the story September 21, 2012.

Source: AP, 09/21/2012