The anti-nuclear movement is not based on anti-scientific and scaremongering - we have Nobel price winners who support that cause and wrote scientific papers of this very issue.
The question asked by them is different from the topic you guys are talking about currently:
* What happens to the radioactive stuff that is created at the end of every of the energy producing process? We're not even able to keep information over thousands of years, how can we be able to big a hole and protect the environment (and our children's children) from radioactive rubbish? If this material is able to somehow get in contact with groundwater we do have a big problem for a whole region. In Germany we do still have forests that none is allowed to eat any fungi - because of Chernobyl which was about 20 years ago and hundreds of miles away...
The storage of radioactive material is a huge problem which isn't solved nowadays. Look at the amount of permanent disposal facilities: there is not a single one for that on the whole world. Even the USA do only have temporary facilities to store there highly radioactive material....
The 2nd problem is trivial: I do not assume that nuclear power plants are unsafe by default. I really do think that it's hard to crash one and bring it to the point of no return where everything blows up. But we saw a few times that it happened. That's technology, it's never a 100% safe. And that's also my problem. If something happens its not only an accident with a few people hurt but a massive disaster where several hundred people are radioactively contaminated, a whole region is uninhabitable and even your children's children have a great chance to give birth to disabled babies.
As I said...it's not that simple. There are a lot of questions still unanswered and this is what we currently see in Japan and saw in Eastern Europe 20 years before. The people will suffer and not only a few years but for generations. If we're able to build more efficient devices and to create other sources of power creation we definitely should do that as we're able to get rid of the (highly unlikely) chance that such a disaster is happening again.
If there are alternatives so why don't we use them? Let's see if it is enough technology out there to generative the energy we need. If no one tries, no one knows - there are studies for both sides of this issue but we do have to at least try it...