Aside from the dyed-in-the-wool extremist fringes of the CND, most people presumably want to see existing nuclear waste made safe and the threat from weapons mitigated as far as possible.

It does more for global stability to develop safe, secure and reliable energy sources than to prepare to squabble over the declining resources that the world holds.

Gen-IV has the potential to reduce the half-life of nuclear waste from hundreds of millenia to a few centuries by fissioning transuranic elements, and to turn existing stockpiles of decommissioned weapons into energy. It can increase the utilisation of uranium by a factor of 50 or so and also allows the use of thorium, of which there are large reserves, and reactors can be proliferation resistant.

The UK had been at the sharp end of research. It's a shame that the nuclear energy industry has been run down, with several thousand top-level jobs disappearing in the last decade or so. Whatever happened to the 'white heat of the technological revolution'?