What U.S. forces are doing in Niger, site of deadly ambush

Three U.S. special forces soldiers were killed and two more injured on Wednesday in Niger. More

Three U.S. special forces soldiers were killed and two more injured on Wednesday while on a training mission with the military of Niger. The soldiers were reportedly caught in an ambush not far from the Malian border, where al-Qaida and Islamic State militants have been active. Judy Woodruff learns more from Peter Pham of the Atlantic Council.

AIR DATE 10/5/17