I'm intrigued with the concept that the (fourth) "IV Generation" of nuclear power producing facilities, will use recycled uranium, thorium or plutonium fuels.    Much of those recycled materials are now commonly called nuclear waste.   

I also found the Generation IV International Forum,  which is a group of 13 countries, as well as a European coalition representing 27 more nations.  The 40 member group is coordinating research and development on the Gen IV systems.   

That same forum has selected six reactor technologies for further research and development: the gas-cooled fast reactor (GFR),  lead-cooled fast reactor (LFR),  molten salt reactor (MSR),  sodium-cooled fast reactor (SFR),  supercritical-water-cooled reactor (SCWR) and the very high-temperature reactor (VHTR)   Click Here 

If these designs are pursued, seems that the initial designs for Generation IV plants could be built this decade and operating in the 2030's and beyond.  Great benefit for the world, and our kids.

Bill Gates nuclear facility being developed in Wyoming is an example of the next generation nuclear plant.  That design will use both sodium and molten salt in its power generating system.

Site plan for Terra Power's nuclear power facility planned for construction in Wyoming.  Bill Gates is CEO of Terra Power.