Back in 2015, as ISIS ravaged its way across Iraq and Syria, Graeme Wood authored an extensive piece examining what the terror group wanted to achieve. The essential point to understand is that ISIS and other terror groups seek to establish a caliphate - and only one can exist at a time. The so-called Islamic State may be virtually destroyed but its influence remains, as we saw when ISIS allies conducted a suicide attack in Kabul last week. What does ISIS want now and how will the Taliban respond? Graeme Wood joins us.
Graeme Wood is a staff writer at The Atlantic and the author of The Way of the Strangers: Encounters with the Islamic State. You can follow him on Twitter @gcaw.
