A black teenager who wrote about the "unavoidable" racial issues he faces growing up in an affluent, predominantly white Connecticut town has won an essay contest on the topic of white privilege.The winner, Chet Ellis, is a 15-year-old sophomore at Staples High School in Westport.He wrote about being followed around by a manager inside a store, and he described a discussion one day during track practice on getting into college when a white friend told him he would have no problem because he's black.