Aren't the Japanese working on Thorium based pebble bed reactors...

Aren't the Japanese working on Thorium based pebble bed reactors already ?
High melting point unlike Uranium which can---- well look at Fukushima
Heard Doctor Karl speaking about it the other day on Triple J.
It all about adoption and none want to spend the money to build a commercial scale test bed as yet.
We need to run out of Oil first...and cook the planet in the process

Such is life on this planet with the humans and the greed contained within.