Spain's Contaminated Colza Oil Affair

A poster denounces toxic colza cooking oil in a Madrid suburb. In the early 1980s over a thousand Spaniards became severly ill or died after consuming contaminated colza oil. Rumors that the oil was mixed with petroleum were later unfounded when investigations revealed excessive pesticides on produce caused the toxicity, as the truth was covered up to protect Spanish agriculture and tourism. (Photo by Jacques Pavlovsky/Sygma via Getty Images)