Did you know that even in the sixties, Argonne National Labs was investigating a type of nuclear reactor that could work on nuclear waste, and in fact made that waste into energy and new waste with lower radiation and a shorter half-life? Neither did I, but Cleo tells about it quite detailed in this . She also mentioned another thing I did not know: that an American president stopped the research into those types of reactors, but furtunately there is renewed interest in this solution, since it would start to clean up our messy heritage...
Atually, there is even talk of making batteries from that waste, that would work for years on end...