World Leaders Address the UN General Assembly

British Prime Minister David Cameron addresses the 67th United Nations General Assembly, New York, September 26, 2012.

Egyptian President Mohamed Morsi addresses the 67th session of the United Nations General Assembly, New York, September 26, 2012.

Performers dressed as Iranian leader Mahmoud Ahmadinejad and Syrian President Bashar al-Assad (rear) prepare their costumes before a protest on the sidelines of the United Nations General Assembly in New York, September 26, 2012.

Tibetans rally near the United Nations during the 67th session of the United Nations General Assembly, New York, September 25, 2012.

President Barack Obama addresses the 67th session of the United Nations General Assembly, New York, September 25, 2012.

United Nations Secretary-General Ban Ki-moon greets people during the 67th session of the General Assembly, New York, September 25, 2012.