Gladrag, your right it could become a global problem. Sadly made worse in the first place by Western intervention.
If Saddam had stayed in power or the West had devised a viable post Saddam plan then none of this would be happening. Our intervention in Afghanistsn will end the same way in s few years and Libya hasn't exactly gone to plan! If we'd got our way in Syria what do you suppose would be happening there?
As well as actually creating environments where extremists can flourish our foreign policies in the middle east have also acted as a great recruitment and propaganda tool.
Anti Western feeling in the Middle East has arguably never been worse since we started meddling!