"This could be a real game changer if it manages to change some minds. We need nuclear tech to cope with the nuclear waste, and this can be done in an inherently safe and responsible way that turns the waste into energy."
But take a closer look at the article. This iech only applies to reactors using graphite blocks as a moderator, a type not used in the US or Asia. The 14C is separated out from the stable 12C and formed into the energy-producing diamonds.
Our own spent fuel, because it still contains 95% of the original energy potential, is better off being fed to a new generation of full-burnup reactors that will extract all the energy and leave behind only short-lived waste.