Though not everyone will agree with me, I too feel that nuclear fuel will play an important role, especially in the near future as fossil fuel resources deplete.
As much as I would like the world to rely totally on renewable energy sources, I simply don’t feel it is a realistic goal - Not within the next 50 years anyway. I believe we will need nuclear reactors for some time to come and would be best off working towards generating more and more energy from renewable sources. As we shift our dependance, perhaps we could move away from nuclear sources, though I don’t see any other alternatives at present that produce the amount of energy we are currently using.
Chernobyl was a huge disaster, though things have improved significantly since then. Waste disposal is a problem though the amount generated per unit energy produced is relatively small. Plants and nuclear materials will inevitably be targets for terrorists, but at the end of the day, they probably are already.
I would like to see a world without even the smallest risk as posed by nuclear power, but unfortunately I just don’t think it can be done at present.