From the latest issue of Scientific American

If developed sensibly, nuclear power could be truly sustainable and essentially inexhaustible and could operate without contributing to climate change. In particular, a relatively new form of nuclear technology could overcome the principal drawbacks of current methods--;namely, worries about reactor accidents, the potential for diversion of nuclear fuel into highly destructive weapons, the management of dangerous, long-lived radioactive waste, and the depletion of global reserves of economically available uranium. This nuclear fuel cycle would combine two innovations: pyrometallurgical processing (a high-temperature method of recycling reactor waste into fuel) and advanced fast-neutron reactors capable of burning that fuel. With this approach, the radioactivity from the generated waste could drop to safe levels in a few hundred years, thereby eliminating the need to segregate waste for tens of thousands of years....continued at Scientific American Digital

Far higher utlilization of energy from Uranium ore (in the range of 100 times more energy per unit mined) plus safe storage of only a few hundred years needed combines to make this type of reactor extremely attractive, to my mind. Besides the fairly large capital investment required - and what energy source doesn't require that - what real barriers remain?

I will be writing letters to various politicians.