Yes I have seen the advocacy for Liquid Fluoride Thorium reactors and there are some apparent tantalizing advantages over current Uranium reactor designs like ability to burn plutonium as a starter fuel, less production of transuranics, higher fuel burn efficiencies, etc.

FORBES: The Future of Nuclear Power: Cheaper and Safer?

But since energy crops first stirred agricultural excitement there's been controversy over the impact of using land to grow crops to burn.

BBC: Biomass may hinder climate fight