The linked article at Scientific American explains the risks of nuclear power, as explained by physicists.
http://www.scientificamerican.com/article.cfm?id=improving-nuclear-safety
It seems that Japan's nuclear crisis is far from over. However, at the same point in time, too many people in the US are using their crisis to condemn nuclear power in the US, which provides about 20% or our electricity needs and accounts for 30% of global nuclear energy generation.