In fact, moves are being made, decisions are being taken and rationale has been set out that point in the opposite direction.
Consider just a few of these in addition to what U.S. News and World Report
· the strategic rational for preëmptive military action was set forth in the 2005 National Defense Strategy of the United States of America. It proclaimed that "America is a nation at war…[and] will defeat adversaries at the time, place, and in the manner of our choosing…[rather than employing] A reactive or defensive approach…Therefore, we must confront challenges earlier and more comprehensively, before they are allowed to mature…In all cases, we will seek to seize the initiative and dictate the tempo, timing, and direction of military operations." In short, as Henry Kissinger pointed out in The International Herald Tribune, April 14, 2006, it is an assertion of the intention to engage in preëmptive or "first strike" warfare. So, the process that began in Afghanistan and was then carried to Iraq and (on a smaller scale) to Somalia points toward action against Iran.