Uranium reactors are children of war, much like hydrogen-bomb-shaped communications satellites. They are a byproduct of A-bomb research. From wikipedia: 1) Wea

Uranium reactors are children of war, much like hydrogen-bomb-shaped communications satellites. They are a byproduct of A-bomb research. From wikipedia: 1) Weapons-grade fissionable material (233U) is harder to retrieve safely and clandestinely from a thorium reactor 2)Thorium cannot sustain a nuclear chain reaction without priming, so fission stops by default. The focus with Uranium reactors wasn't to make reaction efficient over time, just violent. What I'm trying to say is the current atomic energy industry is heavily invested in Uranium. No wonder they're resistant to change.