We already have a solution to the waste, but President Clinton cancelled it
The Integral Fast Reactor (IFR) project created a nuclear reactor that was fueled from the waste (actinides and DU) from existing nuclear plants.
We can easily power our country for over 1,000 years just on the waste we already have.
Bill Clinton canceled it in 1994, saying that the project was "unnecessary."
Dan Rather Reports recently did a story on the technology (see "Power Play" on iTunes).