Federal agents who raided a Clifton warehouse Thursday weren't looking for the typical heroin mill or pile of laundered money. They were after a more slippery stash. The agents seized about 22,700 gallons of oil after the Food and Drug Administration found that the Hermes and San Giovanni brands had been substituting soybean oil for some of their extra virgin and pomace olive oil. Olive oil is approximately five or six times more expensive than soybean oil, according to the FDA, which estimated the profit of the swap at $105,600. "We will not permit New Jersey consumers to be defrauded,"...