Senior officials of the United States and five other nations plan to confer Wednesday on possible UN sanctions against Iran for processing uranium as part of its disputed nuclear program. Undersecretary of State Nicholas Burns and his counterparts in Britain, France, Germany, Russia and China will confer by video about what should be on a UN sanctions list, State Department spokesman Sean McCormack said Tuesday. The UN Security Council is giving precedence to considering sanctions against North Korea, which announced Monday that it had detonated a nuclear device. That resolution "would almost certainly move at a quicker pace than the Iran resolution," McCormack said.