Utterly.
If even just 1% of the worldwide Muslim population were extremists we'd be screwed.
About the worst thing we could do would be to treat ALL muslims as if they're extremists, that is exactly what the people committing these atrocities want, they want it to become "us against them" with as many more Muslims feeling that way as possible.
They want it to become a war against their religion as opposed to against the violent minority such as themselves.
Lets be honest, "they" are the arms manufacturers who have been in glee the last few decades and like all businesses, they desire far more than is sustainable.
But military campaigns just aren't common enough to support its vicious needs, so they instead slime their way into civilian life with things such as Full-body scanners, Sonic weapons, Infrared guns and other such things for police forces.
Just good business apparently, especially since people are so predictable...after all that is by an large the definition of economics as a science of the predictable.