When Kim Jong Nam — the half-brother of Korean leader Kim Jong Un — was assassinated in February while waiting for a flight at the Kuala Lumpur International Airport in Malaysia, attention was focused on one of the deadliest chemicals in the world: the nerge agent VX. What is VX, why is it such an effective poison, and how are victims of exposure managed medically. These are some of the questions we'll be examining in this edition of the TPR podcast.