"I had a profoundly well-educated Princetonian ask me, 'Where is your tomahawk?' I had a beautiful woman approach me in the college gymnasium and exclaim, 'You have the most beautiful red skin.' I took a friend to see Dances with Wolves and was told, 'Your people have a beautiful culture.' . . . I made many lifelong friends at college, and they supported but also challenged me with questions like, 'Why should Indians have reservations?' " What...