Three Mile Island is a nuclear power plant located in Dauphin County, Pennsylvania, on the eastern side of the state. It was the site of the Three Mile Island nuclear meltdown, which occurred on the morning of May 28, 1979. Although no one outside of the plant was harmed, the workers inside were exposed to high levels of radiation, and the public became worried that nuclear power was unsafe.
The story of Three Mile Island shows that nuclear incidents can be prevented, as long as the right safety measures are in place and the employees are trained properly. What happened on Three Mile Island was small in comparison to the Fukushima Disaster in Japan or the Chernobyl Incident in Russia. However, it still serves as a cautionary tale about how small mistakes and errors in judgment can add up to major disasters.