The Evolution of Terror: What the Paris Attacks Tell Us About ISIS
Iraqi Shiite men who have volunteered to join government forces in the fight against jihadists from the Islamic State group, take part in a training session in the city of Hillah on October 18, 2014.
( HAIDAR HAMDANI/AFP / Getty )
( HAIDAR HAMDANI/AFP / Getty )
Produced by Amber Hall
