A deadly car bomb explosion rocked central Damascus, Syria, in front of the Finance Ministry building (center) and the Central Bank (right) on Monday. Louai Beshara/AFP/Getty Images hide caption

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Um Ahmed, her husband, Abu Ahmed, and their two children sit inside a United Nations refugee registration center in Tripoli, Lebanon. They fled the northern Syrian city of Aleppo a month ago. "There was a lot of shelling," said Um Ahmed. "I wasn't thinking. I was just thinking of my children." Nicole Beemsterboer/NPR hide caption

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Free Syrian Army fighters are seen in the Syrian town of Azaz, some 20 miles north of Aleppo, on Tuesday. Turkpix/AP hide caption

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Syrian soldiers who defected join protesters in the al-Khaldiya neighborhood of the restive city of Homs on January 26, 2012. -/AFP/Getty Images hide caption

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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

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