Why are we there?

Anyone that knows me knows I am NOT a George W Bush fan. I have a real problem with people that can not fess up when they are wrong or even admit their faults. God made us all human and part of being human is making mistakes. I FULLY support our military. They are doing their job and doing the VERY BEST we can expect. They are the BEST!!!! However, I still ask "why are we really in Iraq"? Wasn't there other leaders that were bigger threats to the US? Now, remember Iraq didn't bomb us, that I fully think we need to resolve (it has been to long already). We need to find all involved and string them up and let every American flog them. What they have done is despicable and unforgivable. Once again, however, what about North Korea or even Iran? Don't they have INSANE leaders and don't the people deserve democracy as much or even more than the people of Iraq? Have we really done justice for the people of Iraq? Are they better off? I am not saying they are or the are not, it is a question. But what I do know is I am really tired of seeing funeral listing for YOUNG men and women that have been killed in my local paper. I also work with a woman that son was sent to Iraq 3 months ago, and they found out yesterday that he has contracted Hepatitis C in Iraq. He was married 2 weeks before he left for training and then sent to Iraq. He is in the national guard. Isn't he supposed to be guarding OUR nation, not another nation? I just don't get it. Maybe someone can enlighten me, cause I am just frustrated and want some answers.