We have become so worried about everything, we worry about a little radiation in our milk 60 years ago they made Radioactive toothpaste
The environmental damage is low in Nuclear power generation, when compared to Coal fired electrical generation. The fact that the Japanese reactors are leaking isn't going to be enough to close all reactors in the world, let alone Japan, I doubt you could produce the needed electricity in Japan by any other means, at least not as cost effective or environmentally safe.