America is browning. As politicians, schoolteachers, and grandparents attempt to decipher what that might mean, Richard Rodriguez argues America has been brown from its inception, as he himself is. As a brown man, I think . . . (But do we really think that color colors thought?) In his two previous memoirs, Hunger of Memoryand Days of Obligation, Rodriguez wrote about the intersection of his private life with public issues of class and ethnicity...