It would be grand if we could discuss "why Brussels" without people getting on their personal hobby horses and hijacking threads.
Terrorism is a global problem and some of us are truly interested in discussing why that happens. Most are not engaging in bigotry or prejudice , we are simply seeking understanding.
   There are some who cannot seem to get past what they perceive to be the short comings of the rest of us. But we are all intelligent adults, we don't need to be talked down to, preached at or otherwise patronised by the self righteous musing of the few. So let us just get on with our discussion and ignore the one trick ponies. Just my take on it.