The 14th annual Contemporary American Theater Festival in West Virginia is all about character. “The menu at this year’s festival, one of the few across the nation devoted entirely to new work, offers a variety of perspectives on a country divided against itself. From the racially driven pessimism in Lee Blessing’s playlets to the terrorism-fueled paranoia of Stuart Flack’s “Homeland Security” to the lighthearted culture clash in Richard Dresser’s Little League comedy “Rounding Third,” the writers invited to the campus of Shepherd University find their voices by tracing the fault lines in the contemporary American character.”