I've heard all the theories about why the Iraq war was pursued by Bush et al. The least credible, to me, was the "Defending Daddy's Honor" scenario. I just don't think anything that petty is behind something as serious as modern day war. The "We want their oil!" response seems weak too --- how much oil could U.S. have bought for $260+ billon? . . . with no loss of life, and without wrecking our economy. I don't think we'll end up controlling that oil . . not in any significant way. It just doesn't add up to suppose that some of these relatively-trivial things were the motivation for it.
Maybe Iraq was a "stepping stone" to a larger plan? I've heard speculation that it was the INTENTION of large monied concerns that the U.S. be taken into overwhelming debt to render us ripe for picking. Whatever . . . . knowing wouldn't change anything, would it?