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Associated Press
Syrian investigators, right, gather next to a damaged police bus that was attacked by an explosion in the Midan neighborhood of Damascus, Syria, on Friday April 27, 2012. A suicide bomber blew himself up across the street from a mosque in the Syrian capital Friday, killing several people and wounding 20, state TV said. Thousands of Syrians protested elsewhere to denounce persistent violence by President Bashar Assad's regime. (AP Photo/Bassem Tellawi)

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