>> i still remember how i felt that grim day, watching robert kennedy's funeral train. as i write in my new book, the faces of those along the tracks are his legacy. black and white, many of them poor, they believed in him. his bravery elevated national optimism, and his death left america with a feeling of shared devastation. his brother's funeral displayed a terrible beauty. robert's farewell held no pageantry, only loss. >> i think my mother was really good about -- it happened with your life and you go on. >> at arlington national cemetery, his grave site reflects none of the splendors of his dreams, but visitors are