Video of deadly Niger ambush raises questions about military mission

Warning: Parts of this video are disturbing and graphic. Newly-released video showing the deadly ambush of American soldiers in Niger is raising new questions about the U.S. military mission. Four Americans were killed in the October ambush. ISIS released the video as part of a propaganda campaign. David Martin reports. Subscribe to the “CBS This Morning“ Channel HERE: Watch “CBS This Morning“ HERE: Watch the latest installment of “Note to Self,“ only on “CBS Thi