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ALEPPO, SYRIA - AUGUST 14: Search and rescue team members remove a body from the rubble after Syrian regime helicopters have shelled barrel bombs on opposition-controlled Bab Neirab area of Aleppo, Syria on August 14, 2014. Seventeen people were killed and many others injured in the bombardment. (Photo by Ahmed Muhammed Ali/Anadolu Agency/Getty Images)

ALEPPO, SYRIA - AUGUST 14: Search and rescue team members remove a body from the rubble after Syrian regime helicopters have shelled barrel bombs on opposition-controlled Bab Neirab area of Aleppo, Syria on August 14, 2014. Seventeen people were killed and many others injured in the bombardment. (Photo by Ahmed Muhammed Ali/Anadolu Agency/Getty Images)