United Nations General Assembly 2012

U.S. President Barack Obama addresses world leaders at the United Nations General Assembly on September 25, 2012 in New York City. — Spencer Platt/Getty Images

President Barack Obama addresses world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City. Over 120 prime ministers, presidents and monarchs are gathering this week at the U.N. for the annual meeting. This year's focus among leaders will be the ongoing fighting in Syria, which is beginning to threaten regional stability.

U.S. Secretary of State Hillary Clinton (3L) attends a speech by President Barack Obama who is addressing world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City.

A sign marks the spot for Iranian President Mahmoud Ahmadinejad ahead of the annual UN General Assembly meeting on Sept. 25, 2012, in New York City.

Dilma Rousseff, President of the Federative Republic of Brazil, speaks at the UN General Assembly meeting at United Nations Headquarters on Sept. 25, 2012, in New York City.

President Barack Obama addresses world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City.

Afghan President Hamid Karzai attends the United Nations General Assembly on Sept. 25, 2012, in New York City.

President Barack Obama addresses world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City.

United Nations Secretary-General Ban Ki-moon addresses the United Nations General Assembly on Sept. 25, 2012, in New York City.

First lady Michelle Obama (C) attends a speech by her husband President Barack Obama who is addressing world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City.

Dilma Rousseff, President of the Federative Republic of Brazil, speaks at the UN General Assembly meeting at United Nations Headquarters on Sept. 25, 2012, in New York City.

World leaders gather for the United Nations General Assembly on Sept. 25, 2012, in New York City.

President Barack Obama (R) and first lady Michelle Obama (2R) arrive at the United Nations General Assembly on Sept. 25, 2012, in New York City.

U.S. Secretary of State Hillary Clinton (C) attends a speech by President Barack Obama who is addressing world leaders at the United Nations General Assembly on Sept. 25, 2012, in New York City.

Afghanistan President Hamid Karzai attends the United Nations General Assembly on Sept. 25, 2012, in New York City.

Syrian Ambassador to the United Nations Bashar Al-Jaafari listens to a speech during the United Nations General Assembly on Sept. 25, 2012, in New York City.

Sheikh Hamad bin Khalifa Al-Thani, Amir of the State of Qatar, addresses the UN General Assembly meeting on Sept. 25, 2012, in New York City.

Egyptian President Mohamed Morsi (R) arrives at the United Nations during the UN's General Assembly on Sept. 25, 2012, in New York City.

President Barack Obama leaves the United Nations after addressing world leaders during the General Assembly on Sept. 25, 2012, in New York City.

Afghan President Hamid Karzai (2nd R) arrives at the United Nations during the UN's General Assembly on Sept. 25, 2012, in New York City.