FILE - This April 28, 2014 file photo shows armed, masked antigovernment gunmen patrolling Fallujah, Iraq, after Al-Qaida-linked fighters and their allies seized the city months ago. The use of barrel... more 
FILE - This April 28, 2014 file photo shows armed, masked antigovernment gunmen patrolling Fallujah, Iraq, after Al-Qaida-linked fighters and their allies seized the city months ago. The use of barrel bombs, which are inaccurate and can indiscriminately kill large numbers of unintended victims as well as the targeted insurgents, has spread this year from Syria to Iraq, and raised concerns that desperate governments will turn to weapons that the international community has condemned as a violation of human rights laws. Fallujah is controlled by ISIL, Al-Qaida in Iraq, and the city’s streets and buildings are believed to be so rife with homemade roadside bombs that Iraqi forces cannot regularly enter. More than 90 percent of its residents have fled the city. (AP Photo/File) less 
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Associated Press | Photo By File
Fri, Jun 6, 2014 4:48 PM EDT