Foreign fighters play an influential role in Islamic extremist groups. They tend to be more violent, more committed, and more resistant to reconciliation than their indigenous counterparts. Perhaps most significantly, they act as vectors of extremism, moving between zones of conflict, and sometimes returning to their countries of origin to instigate acts of terrorism. Our guests on this episode, Jasmine El-Gamal and Nate Rosenblatt, have researched the problem extensively for almost two decades. They predict that the next wave of extremism fueled by this phenomenon is gathering momentum even now and could pose an even greater threat to global security than its predecessors.

Intro music: "Unsilenced" by Ketsa

Outro music: "Launch" by Ketsa

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