In July of 1941, the United States embargoed oil to Japan. Coincidentally in July of 2012 the United States embargoed Iran from selling oil . In December of 1941, Japan bombed Pearl Harbor and then the U.S. declared war on Japan and Germany. It found a way to get into World War II.
We are in a de facto state of war with Iran now. Anytime another country stops life supporting commerce or the ability of another country to feed its people , then the abused country has the right of self defense to stop the agressor nation. In this case The U.S. is the agressor and Iran is the abused . Will Iran strike in December? It's only a matter of time.
The stupid part of this scenario is the U.S. is trying to make the world safe for Zionism. Nobody can make that happen.