“This is in some respects the worst position Paul could take. He acknowledges that attacking Iran won’t actually prevent Iran from acquiring a nuclear weapon if that is what their government is intent on doing, but he still backs military action for the sake of ‘prevention.’ More to the point, Paul is endorsing preventive–and therefore unnecessary–war as an acceptable and appropriate policy. If there are still any Paul supporters that have been trying to find a silver lining in the senator’s increasingly hawkish foreign policy positions, this should be enough to persuade them to stop trying.”
http://www.theamericanconservative.com/larison/paul-endorses-military-action-against-iran/