Appearances are deceptive so that I do not like labeling people depending on their nationality and/or religion. Buuuut... Everyday's life shows us the strange (dark) side of muslims, people from Iraq, Iran, Afghanistan killing each other, suicide bombers, rebels etc.
Even tough I am aware of the fact those are only some % of the whole population, I would never go to the far east (for hoilday for instance), in case of not getting killed while flying or travelling by car.
The whole situation might have been caused by the Americans who have begun the war in case of gaining some rock oil. It is ridiculous. The effects can be seen in everyday's life. There are a lot of Muslims in Wroclaw, where I live, some Kebab reastaurants etc. - the people seem friendly. I have never met any rebel or whatever.
That is my opinion.
Greets!