Three Mile Island

What happened at Three Mile Island in 1979 led to a new regulatory environment that increased the costs of building and running nuclear power reactors in the U.S. The environment was so hostile to the industry that no new reactors have been ordered since then. There are several in the planning stages, but none have been approved. The question now being debated among energy analysts is whether or not what's going on in the Gulf of Mexico at the moment will lead to similar challenges for the oil industry. Of particular interest is the precedent set this week when BP agreed to pony up $20…