Segment 1: An article from The Atlantic sparked debate over the merits of gym class last year. Gym class in school is supposed to be fun. But according to a study, it may have a negative impact on students. In today's conversation, we explore the merits of gym and how a new crop of physical education teachers is trying to make P.E. enjoyable for every kid. Alia Wong , staff writer, The Atlantic Nick Williamson , P.E. teacher, Crossroads Academy - Quality Hill Stephanie Dickson , instructional