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World headlines
  1. Rio's Carnival a big draw for gay tourists
  2. Pope marks Ash Wednesday
  3. Lithuanian archive releases KGB collaborator names
  4. McCain urges Libyan militias to join national army
  5. Argentine train slams into station, killing 49
  6. Greece lowers recovery expectations
  7. Shelling kills 2 Western journalists in Syria
  8. Witness: Explosions rock northern Nigeria city