I think one additional factor here is that storage isn't the only option. Once a larger amount of waste needs to be managed the attractiveness of fast breeder r

I think one additional factor here is that storage isn't the only option. Once a larger amount of waste needs to be managed the attractiveness of fast breeder reactors starts to increase. These reactors can then extract more energy from this high level "waste" (really fuel for fast breeder reactors). These reactors would then reduce the volume of this waste by a factor of about 100. So in the end, those 400 car-sized containers of waste per 50 years becomes 4. One hundred years worth of energy for an entire country producing about a house's volume of waste, total.