Of these, 4 per cent said killing could be justified to "promote or preserve" religion, while 28 per cent said it was acceptable if that religion were under attack.

Four percent is a very small percentage. I bet if a survey were taken among other religions, a similar percentage would be found. As for the 28 percent, their religion is under attack, and that's causing more and more Muslims to become radicalized who were not before. There are more than a billion Muslims in the world. Every time we drop a bomb on Muslims, we create many, many new extremists. Anyone who thinks they can get rid of extremism among Muslims this way is just plain stupid.