Journalist Marie Colvin (second from left) poses with Libyan rebels in Misrata on June 4, 2011. She was killed in the besieged Syrian city of Homs on Wednesday. Later that day in Tripoli, fellow war correspondents gathered to remember her. Zohra Bensemra/Reuters/Landov hide caption

itoggle caption Zohra Bensemra/Reuters/Landov

Wael Ghonim talking with reporters on Feb. 8, 2011, in Cairo's Tahrir Square as protests there continued. Khaled Desouki /AFP/Getty Images hide caption

itoggle caption Khaled Desouki /AFP/Getty Images

Egyptian protesters carried away a man suffering from tear gas during clashes with riot police earlier today near Tahrir Square, in Cairo. Mahmud Hams /AFP/Getty Images hide caption

itoggle caption Mahmud Hams /AFP/Getty Images

Turkey's Prime Minister Recep Tayyip Erdogan said Turkey does not expect anymore Syria to respond to the demands of the international community to stop violence and initiate democratic reforms. ADEM ALTAN/AFP/Getty Images hide caption

itoggle caption ADEM ALTAN/AFP/Getty Images