FRONTLINE
20 May 2016
The inside story of the the radicals who became the leaders of ISIS, the many missed warning signs and the U.S. failures to stop the terror group's brutal rise.
0:00 / 0:00
20 May 2016
The inside story of the the radicals who became the leaders of ISIS, the many missed warning signs and the U.S. failures to stop the terror group's brutal rise.
0:00 / 0:00