"Al Queda" means "the database". The name arose directly from the huge computerized database by which the CIA kept track of the many Muslim fanatics they recruited as Mujahedeen to fight the Soviets in Afghanistan in the 80s. Those Muslims became the Taliban after the Soviets left, and they also served as the founding fathers of what has become known as Al Queda. Afghanistan in the 80s was one of the earlier battlegrounds in this Great Game. The intention was to drive the Soviets out of that region, hopefully bankrupt them, and eventually cause the breakup of the Soviet empire. That plan succeeded. The breakup of the Soviet empire has allowed western corporate oil interests to get access to much of the oil in the Caspian region. The pipelines to move that oil are being built through Afghanistan.
Any loss of life, foreign or domestic, is considered acceptable in this game...if it will secure control of most of the world's remaining oil for the West.
If they can get you to hate and fear the Muslims...if they can get the Muslims to hate and fear you...that only helps advance the plan.
They seem to be doing fairly well with it so far, although the part about invading Iran is problematical, because it might just prove to be too big a bite to swallow.