HASs of slums in desert on outskirts of city, shots of dwelling assembled with pieces of scrap and tarps (0:43). WS, PAN RIGHT of slums at foot of jagged, barren mountains and mesas, TILT DOWN along dirt street (1:41). HALS of bus driving through slum (0:22). HAWSs, MWSs of slum in desert, mostly inhabited by workers of maquiladora plants (2:01) FOLLOW MLS of two teenagers walking down sand dune, entering slum (0:38). LALS of white cross on hilltop (0:17).