Dioxin has gained media attention since Ukrainian presidential candidate Viktor Yuschchenko was poisoned with the chemical. Alarmists refer to it as “the most deadly chemical known,” but such is not the case, says Michael Fumento of the Hudson Institute. Dioxin is a byproduct of certain industrial processes such as incineration and bleaching. Humans carry small amounts of dioxin in their fat and blood, but the myth of “deadly dioxin” began with an experiment with guinea pigs, who were fed 1,000 times as much before they died. Even though large amounts killed guinea pigs, the facts are: Yuschchenko carried about 6,000...