ADRE, CHAD: At the Adre border crossing between Chad and Sudan, the desert heat settles over rows of tarpaulin shelters and weary travelers wait in an atmosphere of uncertainty.
Women sit beneath sparse acacia trees, shielding infants from…

ADRE, CHAD: At the Adre border crossing between Chad and Sudan, the desert heat settles over rows of tarpaulin shelters and weary travelers wait in an atmosphere of uncertainty.
Women sit beneath sparse acacia trees, shielding infants from…