if we have thorium, that is good; not bad, page-3

Thorium is much more abundant in nature than uranium.

Thorium can also be used as a nuclear fuel through breeding to uranium-233 (U-233).

When this thorium fuel cycle is used, much less plutonium and other transuranic elements are produced, compared with uranium fuel cycles.

Several reactor concepts based on thorium fuel cycles are under consideration.

http://www.world-nuclear.org/