The San Onofre nuclear plant in northern San Diego County.
The reactors at the San Onofre nuclear plant in San Diego County haven't generated any power since being sidelined over a year ago following the discovery of a radiation leak and erosion of some generator tubes. After failing to overcome a host of regulatory hurdles needed to restart the ailing facility, Southern California Edison announced plans to shutter the plant. So how do you mothball a nuclear power plant? Reporter: Steven Cuevas