What You Don't Know Can Hurt You

According to Peter Kendall in the Chicago Tribune, Ruben Brown, age sixty-one, was known on the south and west sides of Chicago, as the friendly neighborhood cockroach exterminator with "the Mississippi stuff." The Mississippi stuff was a pesticide Brown had bought hundreds of gallons of in the South, and it really did the trick on roaches. Brown went from door to door with his hand sprayer, and his business grew as satisfied customers recommended the remarkably effective exterminator to others. In the process, however, Brown is alleged to have single-handedly created an environmental catastrophe. The can-do pesticide-methyl parathion-is outlawed by the EPA for use in homes. Southern farmers use it on boll weevils in their cotton fields, and within days the pesticide chemically breaks down into harmless elements. Not so in the home. There the pesticide persists as a toxic chemical that can harm the human neurological system with effects similar to lead poisoning.

The EPA was called into Chicago for the cleanup. Drywall, carpeting, and furniture sprayed with the pesticide had to be torn out and hauled to a hazardous -materials dump. The U.S. Environmental Protection Agency estimated that the total cost of the cleanup would be some $20 million, ranking this as one of the worst environmental nightmares in Illinois history.

Brown was charged with two misdemeanors. He apparently didn't know much about the pesticide he sprayed so liberally. Brown's attorney said, "It's a tragedy. It is one of those situations where he did a lot of harm, but his intention in no way matches the damage he has done. He is a family man and handled it with his own hands. Do you think he knew how toxic it was?"

What you don't know can hurt you. That is true both of pesticides and of false teaching.