Why aren't we building thorium reactors that appear to be much safer and more powerful than uranium/plutonium reactors? There is virtually an unlimited supply of thorium. - William Mook, Technology Provider at Intel (2012-present)

https://www.quora.com/Why-arent-we-building-thorium-reactors-that-appear-to-be-much-safer-and-more-powerful-than-uranium-plutonium-reactors-There-is-virtually-an-unlimited-supply-of-thorium/answer/William-Mook