People who have left the group talk about how a religious inspiration took them to ISIS. It was their feeling of being marginalized as Muslims in the society where they were living, and then buying into the promise of a caliphate and of a Muslim land that is governed as in the time of the prophet. I have yet to meet anybody, or speak to anybody, who was not religiously motivated at some level.

They're implementing what was the strategy of Al Qaeda, which was to have attacks of different levels simultaneously. ... So the idea is, on the one hand you have these spectacular attacks that take months to plan, and others like Reda Hame, a French national, who went to Syria and was there for about a week, given a couple of days of target practice and one day of encryption training, sent back and arrested almost immediately.

[People who have left the ISIS] say that there comes a moment when the inconsistencies and apparent hypocrisies of their sheikh lets them down, and they begin rereading scripture and find ways that vouch for a nonliteralist reading of the Koran.

I've had countless jihadis shut me down straightaway and say, "I'm not allowed to speak to any woman who is not my relative." But among the few I'm able to get through to, I think that being female makes me more approachable, soft, all the stereotypes of what female means.

It's become extremely difficult to speak to active ISIS members now. I was speaking to them in 2015, and the last one was killed in a drone strike.

It seems to me that a 9/11-style attack is impractical.

The systemic failure in the media in covering ISIS is that the majority of reporters are doing it in a semaphore fashion.