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International Atomic Energy AgencyNuclear MaterialsNuclear MaterialSpent FuelSafeguards SystemPhysical ProtectionNuclear Fuel CycleNuclear FacilitiesSpent Fuel StorageNuclear WeaponsNuclear SecuritySpent Nuclear FuelNuclear SafeguardsNuclear EnergyNonproliferation RegimeSpecial Nuclear MaterialMaterials ManagementHighly Enriched UraniumBearing MaterialsFuel Cycle