05 November 2012, two nuclear power reactors in Korea, south, have been shut down due to the discovery of thousands of potentially faulty parts.

Government officials (Knowledge Economy Ministry) say they discovered that at least eight parts suppliers have been lying about the reliability of those parts.  Officials suspect that at least 5,233 bad parts are being used in five nuclear reactors.

The parts include things like fuses and switches.  Officials say they are not parts directly related to the nuclear reactors and their radioactive fuel.  However, the reactor shut downs will greatly impact electric power supply in the Republic of Korea, officials say it will take several months to replace all the parts.

I did not find any reports indicating if the faulty parts might have been the cause of two emergency shut downs back in August.  Korea (south) currently has 23 nuclear reactors in operation. They hope to have 39 by the Gregorian/Western/Christian calender year 2030.