Age-Old Debate Over N.C. Barbecue Fired Up By MARTHA WAGGONER Associated Press Writer 10:15 AM PDT, May 29, 2005 ARCADIA, N.C. — Fourth-graders here expected a civics lesson when they suggested that the Lexington Barbecue Festival be named the state's official food festival. Instead, they got a lesson in the fierce intrastate rivalry over barbecue that pits west vs. east, tomato vs. vinegar and whole shoulder against whole pig. "I didn't know so many people would be asking questions and wanting to know how I feel about it," said 10-year-old Kaylyn Vaughan. "You have to realize it is a very...