Storm's self-radicalization was very sudden, reading in a library; so was his de-programming, when he started looking for "contradictions within Islam" on the Internet. He demonstrated his de-conversion by ordering beer and pork in a restaurant. Later, while setting up a rendez-vous, he changed plans without the CIA's permissions when he discovered that a particular place in Vienna served alcohol, and had to go to a nearby McDonald's.
Much of the film is shot in Copenhagen, which I visited in 1972.
Storm points out that the Muslim culture and religion emphasizes belonging to a group or tribe and absolute loyalty to it, to the extent that "unebelievers" are automatically viewed as enemies against Allah (or against the tribe) in the most extreme groups, and fair game just like soldiers. The sense of morality is far removed from western ideas of individualism and "personal responsibility".