United Nations Headquarters

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Hillary Rodham Clinton listens during a news conference at United Nations headquarters on March 10, 2015. (Associated Press) **FILE**

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Hillary Rodham Clinton speaks to the reporters at United Nations headquarters on March 10, 2015. (Associated Press) **FILE**

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President Obama raises his glass to toast during a luncheon hosted by U.N. Secretary General Ban Ki-moon on Sept. 24, 2014, at the United Nations headquarters. (Associated Press) **FILE**

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President Barack Obama meets with Iraqi Prime Minister Haider al-Abadi at the United Nations headquarters, Wednesday, Sept. 24, 2014. (AP Photo/Pablo Martinez Monsivais)

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President Barack Obama addresses the Climate Summit 2014 at United Nations headquarters on Sept. 23. (Associated Press) **FILE**

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U.S. President Barack Obama addresses the Climate Summit at United Nations headquarters, Tuesday, Sept. 23, 2014. (AP Photo/Seth Wenig) **FILE**

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Gloria Steinem attends the The 5th Annual DVF Awards at the United Nations Headquarters on Friday, April 4, 2014 in New York. (Photo by Luiz C. Ribeiro/Invision/AP)

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Designer Diane von Furstenberg, left, presents the The 5th Annual DVF Award to Gloria Steinem on Friday, April 4, 2014 at the United Nations Headquarters in New York. (Photo by Luiz C. Ribeiro/Invision/AP)