Dr. Kirk Yeager received his BS in chemistry from Lafayette College and PhD in inorganic chemistry from Cornell University. He worked as a research scientist and became the associate director of R&D at the Energetic Materials Research and Testing Center (EMRTC) in Socorro, New Mexico. While in the Land of Enchantment, he also held the position of adjunct professor in the New Mexico Tech chemistry department. For ten years, he served as a physical scientist and forensic examiner for the FBI Laboratory's Explosives Unit, where he deployed as a bombing crime scene investigator to dozens of countries. Currently, Dr. Yeager is the FBI's chief explosives scientist. Dr. Yeager has nearly thirty years of experience with improvised explosives and IEDs. Over the course of his colorful career, he has served as a subject matter expert for the National Academies of Sciences, worked as a technical adviser for MythBusters, and been the subject of a feature article in Popular Mechanics. He is an avid geocacher and holds the rank of Black Belt in Danzan Ryu Jujitsu. His academic prowess is surpassed only by his charm and humility.