Overview: Segments include profiles of Vikings great Fran Tarkenton and golfer Mallory Code, who is battling cystic fibrosis. Also: an in-prison visit with Dubravko Rajcevic, arrested for stalking tennis star Martina Hingis; and a look at the ill effects of playing NFL football on a player's long-term health. Correspondents include Jim Lampley, Mary Carillo and Frank Deford.