Great question. The answer is yes. Immediately following 9/11, we couldn't even stop immigration from countries who harbor terrorists, AND build a fence across our southern border. Too many people seem to think, we had no right to protect ourselves, because taking such protective measures would not have been "nice."
As much as it may be warranted, with the ongoing war in Iraq, the United States will NOT stand up to Iran.
As much as I would like to disagree, I fear you are right.