The plutonium left in the 30,000 year nuclear waste represents a proliferation risk. By burning the plutonium and remaining uranium you are left with shorter l

The plutonium left in the 30,000 year nuclear waste represents a proliferation risk. By burning the plutonium and remaining uranium you are left with shorter lived isotopes that cannot be used in a bomb. Further the number of sites which can promise 30k year storage is quite small. Only Requiring geologic and hydrologic stability for 1k years opens additional options.