Islam is central to ISIS, says journalist who spent years interviewing fighters
![This undated file image posted on a militant website on Jan. 14, 2014, which has been verified and is consistent with other AP reporting, shows fighters from the al-Qaida linked Islamic State of Iraq and the Levant (ISIL) marching in Raqqa, Syria. trove of documents turned over to European news outlets is reported to list the names of at least half a dozen Canadians among thousands of foreigners who have joined the Islamic State terrorist group. THE CANADIAN PRESS/AP/Militant Website, File ISIS Canadians 20160310](https://i.cbc.ca/1.3637369.1466023082!/fileImage/httpImage/image.jpg_gen/derivatives/16x9_460/isis-canadians-20160310.jpg)
The violent activities of the terrorist organization known as Islamic State, have confounded the world's great powers, and attracted young people from across the globe to its ranks. Yet we know little about who its adherents are, or why they act as they do. For more than a decade, journalist Graeme Wood immersed himself in the world of the Islamic State. His new book is called The Way of The Strangers: Encounters with the Islamic State.