Geoff wrote a pithy comment on the 2012 Nature article on advanced nuclear.
The characterisation of India's 1974 bomb as being “from reactor fuel” inviting “rampant nuclear-weapons proliferation” is unsupported by consequent events. There has not been rampant nuclear weapons proliferation. The invitation was clearly declined. John Mueller's “Atomic Obsession” goes into substantial detail in its explanations of why this hasn't happened, but the brute fact is that it hasn't. The fact that something is technically possible says nothing about its likelihood and the world now faces real climate dangers while being hamstrung in the deployment of our most scalable energy system because of bizarre imaginings. Had the US and other countries followed France and not been scared by these imaginings, they'd all be producing electricity for 90 grams of CO2/kWh instead of the current global average of 500 grams CO2/kWh and the world would be a much, much safer place with a far more manageable climate problem. We must not let over active imaginations stand in the way of a massive deployment of clean nuclear energy.
The whole article is worth a read.