Can you tell if someone's been radicalised?

Can you tell if someone's been radicalised?

Jason Burke (Author) gives expert video advice on: What is Al-Qaeda?; What does Al-Qaeda want?; When was Al-Qaeda formed? and more...

Radicalisation is a very varied phenomenon when you look at the paths that militants have taken into terrorist activity, they are very, very different, often. Some people clearly show changes in patterns of behavior, show that they become far more religious for example, show that they become far angry, more violent. Many don't. Many continue with what, to their friends and family, would be a completely normal way of behaving and acting, and as we so often hear, their final act, the terrorist act, comes as a shock to those who knew them. Radicalisation is again, a difficult area and there is no one silver bullet will end it or will reveal that someone will become radicalised.