This poet's guide dog helped him discover a new world

Born with a condition that left him legally blind and in a family that kept his disability hidden, it wasn’t until poet and professor Stephen Kuusisto was in his late 30s that he decided to train with a guide dog. Jeffrey Brown talks with Kuusisto about his new memoir, “Have Dog, Will Travel,” and how his life-altering connection with a four-legged companion helped him become his own advocate.