We're there because of U.S. interests, and those U.S. interests can be  summarized quite simply in one or two words: oil and natural gas. The stability  of the Persian Gulf is of enormous national interest to the United State. No  politician wants to send young men and women to die for oil. But the fact of the  matter is that it is one of the politically most - no pun intended - inflammable  issues. When the price of gasoline goes up, as it is going up right now, to $4 a  gallon, if we were to leave before there is genuine stability in Iraq, if that  area no longer had the oversight of American military, I think you could very  easily see the price of oil go up to seven, eight, nine dollars a gallon. And  the fact of the matter is then you would have all kinds of political yelling and  screaming on Capitol Hill, all kinds of pressure being raised by the American  public, which would not want to see that happen to its economy.  
-- Ted Koppel, on Tuesday's  Talk of the Nation (NPR).
 
