I would say that nuclear power is neutral like all other technology. If it is not handled correctly it can be very dangerous. A lot of the opposition to nuclear power is due to insufficient information and bad management. The Supreme Canuck mentioned that USA stores it's nuclear waste at the Yucca Mountain storage facility, which happens to be situated on a volcanic fault line. In my opinion the largest drawback of nuclear power is the very long halflife of the waste. It is easy for us to just shove the waste into a large hole in the ground but in 10,000 - 50,000 years a lot of geological activity can happen and it is not certain that the people of that time will know of the danger. Nobody want a waste facility placed in their backyard, but in Europe it is hard to find a suitable place where noone lives closeby.

I'm not against nuclear power but i'm also not all positive about it, that would be too naive. While it looks good on paper the implementation is not good enough many places. Britain has Magnox reactors that were designed to run for only 20 to 25 years but some are still running eventhough they are 30 to 45 years old. The Sellafield reactor is quite infamous and has had a lot of problems during the years.