Developed in America, but abandoned because you can't quickly make weapons material from them.

Do I need to tell you where these are actually being built, thanks to technology theft transfers?
By the time your useless-as-d0g$#!t "news" mentions it to you, several of these will be in operation ... somewhere else. Oh, and after that point, if the U.S. wants to build them, there will be royalties due on every kilowatt generated. 

http://www.telegraph.co.uk/finance/comment/ambroseevans_pritchard/8393984/Safe-nuclear-does-exist-and-China-is-leading-the-way-with-thorium.html