It is a great honor to be chosen to give this tenth-anniversary lecture. This year, more than at any other time since the beginning of the war on terror, I think we can see clearly how that war has changed our country. Now that the terror seems finally to have receded somewhat, perhaps we can begin to consider the steps necessary to return the United States to what it was before 9/11. To do so, however, we must be clear about what has happened over the past ten years. Thus tonight I will dwell on the history of the war on terror.