As more comes out on the Japanese disaster impacting its nuclear power plants, the actual safety and reliability of nuclear energy in this country is being explored and debated. The Dept. of Energy says that 103 nuclear units supply about 20% of the electricity produced in the US – second only to coal as a fuel source. Proponents of plug-in electric vehicles advocate renewable energy as the growing source of electric power plant energy, replacing dirty coal and potentially dangerous nuclear; natural gas would be much more acceptable to them, along with solar, wind, and other renewables. Some would say nuclear power is a renewable, and is much safer in the US. You can expect to hear a lot more about it.