
** FILE ** Bolivian President Evo Morales addresses a summit on the Millennium Development Goals at United Nations headquarters in New York on Monday, Sept. 20, 2010. (AP Photo/Richard Drew)

** FILE ** United Nations Secretary-General Ban Ki-moon announces Thursday, March 21, 2013, that the United Nations will investigate the possible use of chemical weapons in Syria, at United Nations headquarters. (AP Photo/Mark Garten)

** FILE ** United Nations Secretary-General Ban Ki-moon announces Thursday, March 21, 2013, that the United Nations will investigate the possible use of chemical weapons in Syria, at United Nations headquarters. (AP Photo/Mark Garten)

**FILE** U.N. Ambassador Susan E. Rice (center), listens as Palestinian President Mahmoud Abbas speaks Nov. 29, 2012, during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state at the United Nations headquarters. (Associated Press)

**FILE** U.N. Ambassador Susan E. Rice (center), listens as Palestinian President Mahmoud Abbas speaks Nov. 29, 2012, during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state at the United Nations headquarters. (Associated Press)

**FILE** U.N. Ambassador Susan E. Rice (center), listens as Palestinian President Mahmoud Abbas speaks Nov. 29, 2012, during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state at the United Nations headquarters. (Associated Press)

Israel's Foreign Minister Avigdor Lieberman gestures as he embraces the United States Ambassador Susan Rice after speaking during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state in the United Nations headquarters, Thursday, Nov. 29, 2012. (AP Photo/Kathy Willens)

Israel's Foreign Minister Avigdor Lieberman gestures as he embraces the United States Ambassador Susan Rice after speaking during a meeting of the United Nations General Assembly prior to a vote on a resolution on the issue of upgrading the Palestinian Authority's status to non-member observer state in the United Nations headquarters, Thursday, Nov. 29, 2012. (AP Photo/Kathy Willens)

A group of what is known as P-5 leaders share a lighter moment after posing for a photo at the 67th session of the U.N. General Assembly at the world body's headquarters on Thursday, Sept. 27, 2012. From left are Chinese Foreign Minister Yang Jiechi, French Foreign Minister Laurent Fabius, Russian Foreign Minister Sergey Lavrov, U.N. Secretary-General Ban Ki-moon, U.S. Ambassador to the United Nations Susan Rice, and British Foreign Minister William Hague. (AP Photo/Craig Ruttle)