The Root Of Middle Eastern Anger
My feeling is that it's not the religion that causes the Middle East to be such an "angry" place, it's the politics. That region has been the hotbed of activity since colonial times (before that, even, but the current strifes are based in colonial policies.

A little history: Everywhere else in the world, countries are formed through a long historical process -- people of different heritages live in an area, form their own culture, then fight wars to gain more land and assimilate more people into their group. This usually takes hundreds, thousands of years. That's the natural way of forming a country.

Now, the countries that you see on the map in the Middle East weren't formed that way -- they were formed that way by Britain and other countries based on their colonial interests in the area, regardless of whether those borders are "natural". As a result, people are stuck with others who are not like them, and who are sometimes even historical enemies. Ancient land claims were disregarded and that has caused a lot of anger in the region there.

It has nothing to do with the religion of the majority of Middle-Eastern people. If the tables had been turned and Islam was the majority religion of Europe and Christianity was the majority religion of the Middle East, the Christian Middle Eastern people would be the angry ones, and the rest of the world would be stereotyping Christians as terrorists.

Never look at the stereotype, always look at the individual -- you'll be a lot more understanding.