Dennis Gartman (of The Gartman Report) reportedly told an audience to short John Deere stock because U.S. farmers won't have any money to buy farm equipment as a result of the 2012 drought. Nothing could be farther from the truth. The U.S. crop insurance program is so good that in some cases, farmers will make more money because of the drought than if they had normal yields. It is a revenue-per-acre insurance program that works off proven yield histories and two price calculation periods. The initial and minimum prices for corn and soybeans were established last February. The next price period is October, which is called the harvest calculation. Barring a total market collapse, the October calculation will be significantly higher than in...