It is naive to think our current adventures in the middle east are not about having a permanant and dominating presence there for years to come.
The myth about bringing freedom and stability to everyone is not neccesarily true (and not particularly important to our foreign policy) It's like the WMD thing, it will fade away eventually.
The real reasons:
We now have four big bases in Iraq and at least two in Afganistan that we didn't have before.
Mark my words those bases, and the threat of power they extend, will still be there 10 years from now.
That's the modern version of empire.
As Seinfeld said: Not that there's anything wrong with that.
P.S.
I totally agree with what this poster said. If we are going to discuss things political we should try to leave the emotion out of it.I am free to believe as I do, and you are free to believe as you do. I am free to try to convince you to see it my way, and you are free to try to convince me of your viewpoint - that's what this country is all about. The attack mentality and name calling is not a neccessary or welcome part of that process