The Straits of Hormuz

Once again this narrow stretch is being used as a threat, so what should we do?  I may sound like a broken record, but how about an emergency increase in the imported oil tariff of $50 a barrel? It's a message to oil market to drop its price which then reduces the Iranian threat as well as their treasury.  It might even help our treasury and credit rating.  I agree with Ron Paul in that going to war over Iran would be idiotic, costly and the end of of our empire. Curiously from the debates a moderate such as Romney appears to want to increase defense spending so that he can strut around like a bully in situation such as this.