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US President Barack Obama addresses the 67th UN General Assembly at the United Nations headquarters in New York, September 25, 2012. Obama on Tuesday demanded "sanctions and consequences" for atrocities in Syria and said President Bashar al-Assad's rule must come to an end. "The future must not belong to a dictator who massacres his people," Obama told the UN General Assembly in a keynote address. EMMANUEL DUNAND/AFP/GettyImages
NEW YORK - SEPTEMBER 25: Goodluck Ebele Jonathan, President of the Federal Republic of Nigeria addresses the 67th UN General Assembly meeting on September 25, 2012 in New York City. The annual event gathers more than 100 heads of state and government for high level meetings on nuclear safety, regional conflicts, health and nutrition and environment issues. (Photo by Jeff Zelevansky/Getty Images)
President Macky Sall of the Republic of Senegal addresses the United Nations General Assembly, Sept. 25, 2012. (Ozier Muhammad/The New York Times)
UN Secretary-General Ban Ki-Moon addresses the 67th UN General Assembly at the United Nations headquarters in New York, September 25, 2012. Ban Ki-moon said Tuesday that the Syrian civil war is a "calamity" that now threatens world peace and demands action by the divided UN Security Council. EMMANUEL DUNAND/AFP/GettyImages
U.S. President Barack Obama greets U.N. Secretary General Ban Ki-moon (C) before addressing the 67th United Nations General Assembly at the U.N. headquarters in New York September 25, 2012. REUTERS/Keith Bedford
Members of the Iranian delegation (L) listen to US President Barack Obama addresses the 67th UN General Assembly at the United Nations headquarters in New York, September 25, 2012. Obama on Tuesday demanded "sanctions and consequences" for atrocities in Syria and said President Bashar al-Assad's rule must come to an end. "The future must not belong to a dictator who massacres his people," Obama told the UN General Assembly in a keynote address. EMMANUEL DUNAND/AFP/GettyImages
U.N. Secretary General Ban Ki-moon (R) shakes hands with Argentina's President Cristina Fernandez during a bilateral meeting on the sidelines of the 67th United Nations General Assembly at the U.N. headquarters in New York, September 25, 2012. REUTERS/Eduardo Munoz
South Africa's President Jacob Zuma addresses the 67th session of the United Nations General Assembly at UN headquarters in New York, September 25, 2012. REUTERS/Ray Stubblebine
Rwandan President Paul Kagame takes a seat after addressing the 67th session of the United Nations General Assembly at UN headquarters in New York, September 25, 2012. REUTERS/Ray Stubblebine
First Lady Michelle Obabma(C) listens the speech of US President Obama at the 67th United Nations General Assembly meeting September 25, 2012 at the United Nations in New York. DON EMMERT/AFP/GettyImages
U.S. Secretary of State Hillary Clinton shakes hands with U.N. Special Envoy to Syria Lakhdar Brahimi (R) during the 67th United Nations General Assembly at the U.N. headquarters in New York September 25, 2012. REUTERS/Keith Bedford
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