Who Takes the Long Side? It is too often unclear whether commentary from politicians is based on the required expediency of their craft, or reflects actual economic ignorance. We always fear the latter. Either way, they act as opinion leaders so that the net effect all too often is the spread of ignorance to the masses. The phrase "addicted to oil" for example, is catchy but a deeply flawed description of the economic dynamic. Drivers do not have a compulsive psychological need for gasoline; it is simply the lowest cost, concentrated and portable energy source available.For the past few years, politicians like Presidents Sarkozy and Obama have made speculators their scapegoats for higher food and oil prices. As Senator Byron Dorgan (D-No...