Participants observe a moment of silence in commemoration of former Secretary-General Dag Hammarskjold, who died in a plane crash 50 years ago while trying to bring peace to the nascent but conflict-torn Democratic Republic of Congo, during the opening of the 66th session of the General Assembly (GA) at the UN Headquarters in New York, Sept. 13, 2011. The president of the 66th session of the General Assembly (GA), Nassir Abdulaziz Al-Nasser, on Tuesday listed four priorities in the work of the 193-member Assembly, calling for more efforts to build peace, promote UN reform, reduce disasters and spur sustainable development and global prosperity. (Xinhua/Shen Hong)

Li Baodong, permanent representative of the Chinese Mission to the United Nations, attends the opening of the 66th session of the General Assembly (GA) at the UN Headquarters in New York, Sept. 13, 2011. The president of the 66th session of the General Assembly (GA), Nassir Abdulaziz Al-Nasser, on Tuesday listed four priorities in the work of the 193-member Assembly, calling for more efforts to build peace, promote UN reform, reduce disasters and spur sustainable development and global prosperity. (Xinhua/Shen Hong)

The president of the 66th session of the General Assembly (GA), Nassir Abdulaziz Al-Nasser (C), addresses the opening of the 66th GA session at the UN Headquarters in New York, Sept. 13, 2011. The GA president on Tuesday listed four priorities in the work of the 193-member Assembly, calling for more efforts to build peace, promote UN reform, reduce disasters and spur sustainable development and global prosperity. (Xinhua/Shen Hong)