The Poisoned Salad: Food Safety LawsHow a cult's plot to win an election changed federal policy.

From the show

Rules Written in Blood

Discover how a bizarre local political dispute escalated into the largest bioterrorist attack in U.S. history. In 1984, a cult tried to rig an election by contaminating salad bars with Salmonella, sickening over 750 people. This single event revealed a terrifying vulnerability in the nation's food supply, leading directly to the creation of anti-bioterrorism laws that protect what you eat today.