Number of foreign recruits to ISIS booms, but not in U.S.

Aired: 12/8/2015 | 0:08:19 | Clip
As U.S. officials worry about attacks inspired by the Islamic State group, a new report says the number of foreign fighters traveling to Iraq and Syria has increased dramatically in the past year. Judy Woodruff learns more from Richard Barrett of the Soufan Group and Rukmini Callimachi of The New York Times.