Onions are the only agricultural product where commodity futures cannot be traded in the United States. It all has to do with two men in Chicago, and a whole lot of onions.
Solenopsis invicta, the “Red Imported Fire Ant”, native to South America, has proven a tenacious and destructive pest in the United States, costing Americans billions of dollars every year. That is why, in the late 1950s, the United States embarked on an all out war against the six-legged menace.