Syria

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This citizen journalism image taken Saturday purports to show casualties of the assault on villages in Houla, Syria, that left more than 90 people dead. The Syrian government denied responsibility and said that its troops were targeted as well. (Shaam News Network via Associated Press)

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Mourners chant slogans against the Syrian regime as they carry the body of soldier Khaled Shurbajy, who was shot by Syrian security forces in Dir el Zour last week after disobeying orders to fire on anti-Assad protesters, during his funeral procession in the Kfar Suseh area of Damascus, Syria, on Saturday, May 26, 2012. (AP Photo)

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Anti-Syrian regime mourners chant slogans as they carry the body of soldier Khaled Shurbajy, who was shot by Syrian security forces in Dir el Zour last week after disobeying orders to fire on anti-Assad protesters, during his funeral procession, in the Kfar Suseh area of Damascus, Syria, on Saturday , May 26, 2012. (AP Photo)

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** FILE ** In this picture taken during a U.N. observer-organized tour, the head of the advance team of U.N. observers, Maj. Gen. Robert Mood, center left, shakes hands with a Syrian security officer during their visit to Hama city, central Syria, on Thursday, May 3, 2012. (AP Photo/Muzaffar Salman)

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** FILE ** This image made from amateur video released by Shaam News Network and accessed Friday, May 25, 2012 purports to show shelling in Jobar, Syria. The Associated Press cannot independently verify the content, date, location or authenticity of this material. (AP Photo/Shaam News Network via AP video)

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This image made from amateur video released by the Shaam News Network and accessed May 23, 2012, purports to show Syrians chanting slogans during a demonstration in Idlib, Syria. (Associated Press/Shaam News Network via AP video)

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This image made from amateur video released by the Shaam News Network and accessed on Wednesday, May 23, 2012, purports to show a building on fire from shelling in Homs province of Syria. (AP Photo/Shaam News Network via AP video)

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A Lebanese Shiite Muslim blocks the street in a southern suburb of Beirut on Tuesday to protest against the kidnapping of 12 Lebanese Shiite pilgrims in Syria's northern province of Aleppo by Syrian rebels. Sheik Hassan Nasrallah, the leader of Lebanon's Hezbollah militant group, has appealed for calm. (Associated Press)

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This image made from amateur video released by Shaam News Network and accessed May 22, 2012, purports to show U.N. observers being welcomed in Idlib, Syria. (Associated Press/Shaam News Network via AP video)