Tracy Walder planned on being a history teacher, but then Osama bin Laden issued a fatwa which changed the course of her career. A chance encounter with a CIA recruiter on the USC college campus in Los Angeles propelled her into a post-9/11 world chasing down terrorists looking to create dangerous chemical weapons. From one country to another, Tracy operated in some of the toughest areas of the world. She brought her experience back home to the FBI, getting involved in a significant long-term espionage case.