Protesters demand that Syrian President Bashar al-Assad step down, in front of Arab League headquarters in Cairo. Amr Nabil/AP hide caption

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President Ali Abdullah Saleh attends an interview with selected media in Sanaa on May 25. Saleh said he would not step down or allow the country to become a "failed state." Mohammed Hamoud/AP hide caption

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Israeli Prime Minister Benjamin Netanyahu speaks at the American Israel Public Affairs Committee (AIPAC) gala banquet in Washington, D.C., on Monday. He has promised to present his vision for Israeli-Palestinian peace in a speech before a joint meeting of Congress on Tuesday. Jose Luis Magana/AP hide caption

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Mahmoud Jibril of the Libyan Transitional National Council talks with reporters after meeting with members of the Senate Foreign Relations Committee at the U.S. Capitol on Thursday. Chip Somodevilla/Getty Images hide caption

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Deputy High Commissioner for Human Rights Kyung-Wha Kang of Korea speaks during a special session of the UN Human Rights Council in Geneva Friday. The council agreed to launch an urgent investigation into Syria's bloody crackdown on protests. Fabrice Coffrini/AFP/Getty Images hide caption

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U.N. Secretary-General Ban Ki-moon. Lefteris Pitarakis/AP hide caption

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Secretary of State Hillary Clinton speaks during a news conference after a meeting on Libya in London Tuesday. World powers agreed that Moammar Gadhafi should step down after 42 years as Libya's ruler but did not discuss arming the rebels who seek to oust him. Toby Melville/AP hide caption

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Secretary of State Hillary Clinton (right) talks with Susan Rice, the U.S. ambassador to the United Nations, in September. The two played a critical role in winning U.N. authorization of using "all means necessary" to protect civilians in Libya. Stan Honda/AFP/Getty Images hide caption

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Secretary of State Hillary Clinton, shown on Capitol Hill on Thursday, is heading to Egypt and Tunisia as the U.S. tries to stay on top of what's happening in the Arab world. Jonathan Ernst/Getty Images hide caption

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Navi Pillay, the United Nations' high commissioner for human rights, looks on during a Human Rights Council special session on the crisis in Libya on Friday in Geneva. Pillay said the world must "step in vigorously" to protect Libyan protesters. Fabrice Coffrini/AFP/Getty Images hide caption

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Palestinian laborers work in a new section to the Jewish settlement of Kiryat Arbaa close to the West Bank town of Hebron in October. The Obama administration was working to persuade Israel to renew a settlement moratorium in the West Bank so Palestinians can return to talks, but those efforts appear to have failed. Hazem Bader/Getty Images hide caption

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Leaked U.S. diplomatic cables contained information on the inner workings of the State Department, including some frank assessments of world leaders. iStockphoto.com hide caption

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The Saudi Air Force flies F-15 warplanes over the capital Riyadh during a graduation ceremony at King Faisal Air Force University last year. The Obama administration notified Congress on Wednesday of a multibillion-dollar sale of fighter jets and military helicopters to the country. Hassan Ammar/AP hide caption

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