Image from a quicklink (Image by Unknown Owner) Details DMCA | A reactor at the Three Mile Island nuclear power plant shut down unexpectedly Thursday afternoon because of a cooling problem, a month after it went offline because of a leak in the cooling system, the Nuclear Regulatory Commission says. The same unit shut down automatically Aug. 22. Steam containing radiation "below detectable levels," was released. Exelon spokesman Ray DeSantis said the shutdown "presents no risks to public health or safety." |