28: Percentage of Iraq veterans who report being responsible for the death of a noncombatant

48: Percentage who report being responsible for the death of an enemy combatant

51: Percentage who report handling or uncovering human remains

68: Percentage who report seeing dead or seriously injured Americans

86: Percentage who report knowing someone who was seriously injured or killed

Source: U.S. Department of Veterans Affairs: www.ncptsd.va.gov/facts/veterans/