Cara is joined by author Luke Dittrich to discuss his new book "Patient H.M.: A Story of Memory, Madness, and Family Secrets." They dive deeply into the story of famed neurological patient Henry Molaison, who, at the age of 27, received an invasive brain surgery that left him with profound memory loss. Luke's telling of the story is especially poignant since his very own grandfather was the lobotomist who performed the surgery back in 1953. Follow Luke: @LukeDittrich.