A Muslim protester holds up a sign that reads "Jihad" during a demonstration in response to French military action in Mali outside the French embassy in central London on January 12, 2013. Around 50 Muslim protesters shouted slogans and waved signs as they demonstrated outside the French embassy against French intervention in Mali. France sent troops on January 11 to help Malian forces hold back a rebel advance towards the capital Bamako, and on January 12 Paris announced that a French military pilot had been killed. AFP PHOTO / CARL COURT (Photo credit should read CARL COURT/AFP/Getty Images) File Photo Muslim protesters holding up a "Jihad" sign. (Credit: CARL COURT/AFP/Getty Images)

By John Ostapkovich

PHILADELPHIA (CBS) – This being the 9/11 anniversary, and with the President laying out a plan to get ISIS last night, here’s the story of one man who knows what jihadis are thinking, because he was one.

Morten Storm, a 6’1 red-haired Dane, converted to Islam, became more radicalized while studying in Yemen and made preparations to fight in Somalia. He describes that world of black and white:

“You just hate. As a jihadist, as a person who strictly follows the literal interpretation of the Koran, and it is about the world being split up to being correct and wrong. You are in the camp of the believers and against the camp of the disbelievers, the camp of God and the camp of Satan.”

Storm experienced a crisis of faith, enough so that he became a double agent for Western intelligence, scary, one-mistake-and-you’re-dead duty that proved so valuable that he’s now featured in a display at the International Spy Museum in DC.

He also left Islam and keeps his head down because he knows his former jihadi allies would love to take it from him.

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