What's the ultimate root cause of the GWOT? It ain't Israel or Bush or Iraq or Rove or Halliburton or 9/11. It is this (hat-tip Hot Air/Robert Spencer - in a must see video):
Qualities of the BelieversThe enemy hates us because of who we are and what we believe, NOT because of our foreign policy. The enemy hates us because we are not Muslims. The enemy wants us to convert or become dhimmis. Or die. This is what THEIR religion tells them they MUST do. If we want to remain free and modern, then we must defeat them. Utterly. Then we will be free and at peace. Until then, we will be at war - a war they started 1400 years ago. (This enemy has also been killing other "lesser" Muslims since then, too: Shias; Sufis et al.)
[Koran - 48:29] Muhammad - the messenger of GOD - and those with him are harsh and stern against the disbelievers, but kind and compassionate amongst themselves.