FILE - This combination made from file photo shows Blackwater guards, from left, Dustin Heard, Evan Liberty, Nicholas Slatten and Paul Slough. “The infamous Blackwater company killed Iraqi citizens at Nisoor Square. The 2007 killings in the Baghdad traffic circle were among many attacks, large and small, hitting civilians that served to turn even some initial Iraqi supporters of Saddam Hussein's overthrow against Americans. The case against the Blackwater guards ping-ponged across courts in Washington, with a federal appeals court at one point overturning the first-degree murder conviction of one defendant, Nicholas Slatten, and sharply reducing the prison sentences of the three others. In Iraq, said Ford, the former diplomat, the pardons will “necessarily give some ammunition to those who say get the Americans out now."