1. It uses thorium-232, which is 4-5 times more common than uranium.
2. The fuel for the reactor is thorium-232 dissolved in molten sodium fluoride salts, far cheaper to make than uranium-235 pellets assembled into fuel rods.
3. It doesn't require a lot of fuel to power the reactor.
4. Because the reactor doesn't need pressurized reactor vessels, it's also a lot safer in design.
5. In case of any emergency, the fuel can be dumped from the reactor in seconds, stopping the reaction quickly for a fast reactor cool-down.
6. By using Brayton-cycle turbines to generate electricity, we eliminate the enormous expense of cooling towers and/or needing to locate the reactor near a large body of water.
7. The waste generated by a LFTR is very small, and the waste only has a half-life of under 300 years. That meanas the waste can be dumped into any salt dome or disused salt mine for permanent storage at very low cost.
In short, LFTR's address most of the issues and concerns from the environmentalists about nuclear reactor designs. So what are we waiting for?
Do you really think the opponents of nuclear power are interested in logic, facts, and reason? Their assumptions about reality are far different from yours.