re: Nuclear fuel.
There are answers for these problems, many of them already off-the-shelf. Here's just one concept.
The main problem with nuclear power is that many people and policy makers are influencing the process who don't know jack about how nuclear power works, and are basing their policy largely on myths and outright fabrications.
Oddly, few of the people who snort about Bush and his supposed irrational attitudes toward science seem to be bothered that the environmental movement has promoted mythology over science for decades.