Private security contractors reindicted by grand jury on manslaughter charges . Case relates to shooting in 2007 that left 17 unarmed Iraqi civilians dead . The case is being investigated as a possible civil rights violation and could result in the dismissal of all charges. Incident prompted international outrage as U.S. prosecution has dragged on for years .
Private security contractors reindicted by grand jury on manslaughter charges . Case relates to shooting in 2007 that left 17 unarmed Iraqi civilians dead . Defendants had denied all charges previously , saying they acted in self defense . Incident prompted international outrage as U.S. prosecution has dragged on for years .