According to a new report, Disposition of High-Level Waste and Spent Nuclear Fuel: The Continuing Societal and Technical Challenges, prepared by an international committee of the National Academies' National Research Council, focused attention by world leaders is needed to deal with the disposal of spent nuclear fuel from reactors and high-level radioactive waste from processing such fuel for military or energy purposes. "Difficulties in garnering public support have been seriously underestimated, and opportunities to increase public involvement and to gain trust have been missed,