Morten Storm pictures above with other Danes declared enemies of Islam. (Courtesy of Atlantic Monthly Press)
"I'm back Obama, and I'm back because of your arrogant foreign policy towards the Islamic State. Just as your missiles continue to strike our people, our knife will continue to strike the necks of your people."
Jihadi John, a militant with ISISHe's known as Jihadi John, a militant with ISIS and familiar to many in the west for his gruesome and menacing videos.
This past weekend, a man - believed to be Jihadi John - was in a new video showing the killing of British aid worker David Cawthorne Haines. The London accent suggests he's a so-called Western Jihadi, one of many believed to be fighting on the battlefields of Syria.
They're from Britain, from Canada, from Denmark, like our next guest....though his story from inside that world of radical Islam is a different one.
"My life has always been radical. I knew that the only person who could get close to these people were people like me. I carried out a mission that led them to the world's most wanted terrorist."
Agent Morten StormMorten Storm grew up in Denmark, converted to Islam and found his way to Yemen and Al Qaeda's top leadership. But he subsequently had a dramatic loss of faith. He says he then became a double agent, spying for western intelligence.
Now, he's come out of the shadows to tell his story in a new book, Agent Storm: My Life Inside Al Qaeda and the CIA, and Morten Storm joined us from our studio in London.
This segment was produced by The Current's Peter Mitton.
The $250 000 CIA reward for the Aminah mission. (Courtesy of Atlantic Monthly Press)
Morten Storm protesting outside US Embassy in London in 2005. (Courtesy of Atlantic Monthly Press)