The federal government is attempting to overhaul the way we dispose of radioactive waste, but it doesn't have a place to store the used nuclear fuel quite yet. The U.S. Department of Energy has plans for an interim storage site by 2021 and a permanent site by 2048, but no location for either site has been confirmed. The Obama administration is pushing a new plan to use special rail cars to haul the 150-ton casks of waste. Idustry officials argue it's not a bad idea to start transportation planning, despite the lack of specific locale details. “You don't want to wait until you're close to opening the facility to try and design a rail car,” said Everett Redmond of the Nuclear Energy Institute.