Iranian President Hassan Rouhani goes before the U.N. General Assembly

Iranian President Hassan Rouhani is escorted to the podium for his address to the 69th United Nations General Assembly at United Nations Headquarters in New York, Sept. 25, 2014.

Iranian President Hassan Rouhani addresses the 69th United Nations General Assembly at the United Nations Headquarters in New York, Sept. 25, 2014.

British Prime Minister David Cameron meets with Iranian President Hassan Rouhani at the UN during the 69th Session of the UN General Assembly, Sept. 24, 2014.

Iraq's President Fuad Masum (left) is greeted by Iranian President Hassan Rouhani as he arrives at the Climate Summit 2014 at U.N. headquarters, Sept. 23, 2014.

Iran's President Hassan Rouhani (center) is escorted for a meeting with U.N. Secretary-General Ban Ki-moon on the sidelines of the U.N. General Assembly in New York, Sept. 23, 2014.