FMD (Foot and Mouth Disease) is feared among farmers. It can decimate herds. Even if animals recover, beef and milk production can be severely impacted. It is so contagious that draconian measures such as mass killings and burning of carcasses are often employed because vaccinations have only a short-term effect. We go to the UK, where the damage from an FMD outbreak is still fresh in farmers’ minds, and to South Korea, which has dealt with 5 recent outbreaks, and explore the drastic steps taken to keep America FMD-free.