A former Islamist extremist was on “The Kelly File” to discuss the threat of ISIS.

Maajid Nawaz, who is from a middle-class English family of Pakistani descent, was recruited by an organization which aimed to establish an Islamic caliphate. By age 16, he was a ranking member.

Eight years later, Nawaz was rounded up in Egypt during a post-Sept. 11 crackdown on extremists.

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During his four years in prison, he spoke with former extremists and fellow inmates and had a dramatic change of heart. He then returned to the U.K. and went on to found the world’s first counter-extremism think tank.

Nawaz sounded off on the reported beheadings of American journalists and said there is no justification for what ISIS has done. He said we must condemn ISIS – but we must go further than that, actively working to undermine a “poisonous ideology.”

Nawaz said this issue is not a clash of civilizations between Islam and the western world; it’s an “intra-religious struggle within Islam.”

“Muslims need to do more but then so, frankly, does President Obama. I can’t believe that the president of the most powerful country in the world has said he has no strategy to deal with ISIS in Syria,” he said.

Watch more above.

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