Blackwater Blackwater

Former Blackwater Worldwide guard Nicholas Slatten leaves federal court in Washington, D.C., in June 2014. Slatten was found guilty for his role in a deadly Baghdad shooting, but his conviction was overturned. On Wednesday, his retrial ended with a hung jury. Cliff Owen/AP hide caption

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Cliff Owen/AP

Former Blackwater security guards were sentenced Monday for the shooting of dozens of Iraqi civilians in Nisour Square in Baghdad, Iraq. The square is seen here on Sept. 20, 2007, four days after the incident. Khalid Mohammed/AP hide caption

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Khalid Mohammed/AP