Not sure of the political meaning of the question.
Terrorism has been in the world for centuries.
Horrific acts of violence in the name of someone's so-called religion (terribly skewed, of course).
But now we are bombarded with the news of it every which way, including pictures.
Missionaries murdered not only for what they do but simply for their faith.
What we consider unthinkable in the USA (beheadings, crucifixion, stoning deaths, etc.) is SOP still in some places.
That's all. I can't answer Boilerman's question, other than I don't see it being "cleaned up" in our lifetime.
People with weak minds, an ax to grind, etc. are susceptible to terrorist recruitment.
Oh, sure, that life is so much better. Use a hole in the ground for your bathroom...but you get to kill people. Yeah.
Like those who went with Jim Jones, Hitler, etc. Weak, brainwashed.
God bless America.