LINGUISTICALLY, SUBJECTIVELY, and territorially, borders are where identities are formed and differences policed, and the current midcareer survey of Enrique Chagoya titled “Borderlandia” reflects the Mexican-born, California-based artist’s ongoing exploration of concepts of identity and difference. The exhibition at the Berkeley Art Museum, which was organized by Patricia Hickson of the Des Moines Art Center in Iowa and will travel to the Palm Springs Art Museum in California this fall, demonstrates that in all the various media in which Chagoya has worked over the past twenty-five years—from