In 1956 W. E. B. Du Bois was denied a passport to attend the Pr?sence Africaine Congress of Black Writers and Artists in Paris. So he sent the assembled a telegram. "Any Negro-American who travels abroad today must either not discuss race conditions in the United States or say the sort of thing which our State Department wishes the world to believe." Taking seriously Du Bois's allegation, Juliana Spahr breathes new life into age-old questions as...