A closeup of Chris Jordan’s Barbies, which is featured in Close Encounters at the Katzen Arts Center. Copyright Chris Jordan. Courtesy Paul Kopeikin Gallery, Los Angeles. Provisions Library, D.C.’s learning laboratory for the arts and social change, which opened its doors in September of 2001, launched a new initiative this past summer, BrushFire. By staging socially-minded public art events nationally, BrushFire aims to promote discourse about democracy, including key political and social issues such…