Oak Ridge National Lab
Oak ridge National Labs developed a 7.5 MW Thorium Based Molten Salt Reactor.  They were underway to develop the next generation of the MSR when the program was cancelled due to a senator from California who had decided to kill the project as it did not meet the characteristics the nuclear builders at the time wanted, Large Plants that could be sold near cost and then have revenue generated from selling rods to the utility.  A MSR does not fit the model as it has very low fuel costs, does no use rods and there is very little residual income for the builder.
Highlights From The Oak Ridge National Lab