On 23/06/2013 08:56, Brian Gaff wrote:
I can remember that Fast breeders
were the future in 1962.. erm what happened to those?

Uranium is more plentiful (cheaper) than believed when they were
conceived, rendering them economically redundant for their original
premise. However the cynic in me believes they were really created to
produce Pu, when that was something that was desired.