You don't think there's a slight difference between organizations such as PKK and al-Qaeda? The PKK fights for independence (just like the Americans did back in the 18th century, but we would never call Americans terrorists, right?
So you can take the vast majority of terrorist groups in the world and declare that they are not terrorists then Innocentius .
BTW since Al-qaida wasn't in Iraq (apart from the American protected Kurdish areas) when Iraq was invaded what has Al-qaida got to do with it ?