The Passion of Alvin Weinberg

Dr. Alvin Weinberg, formerly the Director of Oak Ridge National Laboratory (ORNL) was a pioneer in the development of nuclear power.  After World War II, ORNL was the center of all sorts of nuclear reactor designs, and Dr. Weinberg was leading the charge.  His most creative idea to be tested and proven successful was the natural thorium molten salt reactor (MSR).  Click herefor more details.

Which begs the question: "Why Aren't We Using Thorium in Nuclear Reactors?"