We are joined by author Craig Grossi, a recipient of the Purple Heart and an eight-year veteran of the US Marines. Grossi tells the story that went viral around the world about a US Marine (Grossi) and a stray dog, and about mutual rescue between man and dog. Grossi's new book is called Craig and Fred: A Marine, a Stray Dog, and How They Rescued Each Other . It's a poignant story of resilience, hope, and optimism.