Mustafa al-Yazid, also known as Sheik Saeed al-Masri, is seen in this undated video image. The Egyptian-born Yazid was a founding member of al-Qaida. Site Intelligence Group/AP hide caption

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Palestinian boys throw flowers into the sea at Gaza City's port during a memorial for pro-Palestinian activists killed in an Israeli raid on aid ships bound for Gaza. Mahmud Hams/AFP/Getty Images hide caption

itoggle caption Mahmud Hams/AFP/Getty Images

An Afghan policeman stands in front of a banner Monday advertising this week's gathering of Afghan tribal leaders in Kabul. The 1,600 delegates at the much-delayed and much-touted gathering will debate strategies for convincing the Taliban and other insurgents to lay down their arms. Shah Marai/AFP/Getty Images hide caption

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President Obama spoke Tuesday in the Rose Garden of the White House. He was flanked by the co-chairmen of the BP Oil Spill Commission, former EPA Administrator Bill Reilly (left) and former Florida Sen. Bob Graham. Pablo Martinez Monsivais/AP hide caption

itoggle caption Pablo Martinez Monsivais/AP

Members of the U.N. Security Council met at the United Nations on Monday for an emergency meeting on the Israeli commando raid that has provoked international outrage and a diplomatic crisis. Louis Lanzano/AP hide caption

itoggle caption Louis Lanzano/AP