Few artists' names can connote such diverse associations as the Virgin Mary, Rudolph Giuliani and elephant dung. (Put thus, it seems rather an achievement.) Controversy tends to dog the art of Chris Ofili, and former New York Mayor Giuliani's suspension of funding for the Brooklyn Museum upon its exhibition of his 1996 painting "The Holy Virgin Mary" in 1999 was but one instance of the ire Ofili routinely arouses. When these occasional media commotions...