Pentagon Chief: Iraqi Strike May Have Been 'Mistake' By 2 Sides

U.S. Defense Secretary Ash Carter says an American airstrike that may have killed a number of Iraqi soldiers seems to be "a mistake that involved both sides."
Carter has called Iraq's prime minister, Haider al-Abadi, to express condolences.
Carter spoke to reporters during a visit Saturday to the USS Kearsarge in the Persian Gulf.
The U.S. military says an airstrike Friday against Islamic State targets may have resulted in the death of Iraqi soldiers near th