Does Social Media Play A Role In The Radicalization Of Terrorists?

There are still a lot of unanswered questions about the shooting death of Usaamah Rahim. Several media outlets, citing unnamed law enforcement officials, say that Rahim was radicalized by militant Islam social media sites.

The Boston Globe and the Daily Beast report that — on a Facebook account linked to Rahim — the user had "liked" the Islamic State and contains references to Salafism, a fundamentalist branch of Islam.

While there are a litany of unanswered questions, we turned to a terrorism expert to better understand the role that social media could play in radicalization.

Bruce Hoffman, director of the Center for Security Studies at Georgetown University.

WBUR: What We Know About Usaamah Rahim, The Boston Man Fatally Shot By Law Enforcement