Nuclear's top 3 problems:
1. Plant construction is very expensive, and not in small part because people who don't actually understand the technology take every opportunity to tie up construction in the courts and regulatory agencies.
2. General population of humans are quite aware of #1, so even though they know nuclear wins on a technology basis, they know it will be unduly expensive, preferring to knuckle under to the mob instead of doing the right thing.
3. People not familiar with the technology don't realize that while we don't generally do reprocessing in the west, it's primarily due to cost, and that Japan will start reprocessing 800 tonnes of fuel per year starting next year.
The technology is the safest way we have to generate power, and could be the lowest cost if the regulatory environment was adjusted properly. It's just a shame there are so many people who are irrationally opposed.