You are thinking like a normal person who would be ashamed of what he did.
These people are PROUD of what they did and expect to be hero's of their people. They want the world to know who they are and what they stand for.
The western way of thinking will never be able to combat this sort of thing. This is a war, and the only way to prevent someone who is willing to die for their cause is to kill them first.
Wino