A Japanese tourist (L) photographs the betel nut stained tongue of a Fire Starter (R) during the 50th Goroka singsing (cultural show) in what is believed to be the largest gathering of indigenous tribes in the world, 16 September 2006. Over 90 tribes from all over Papua New Guinea — the world’s most culturally diverse nation — have gathered in Goroka for the annual festival of traditional dance on Independence Day. AFP PHOTO/Torsten BLACKWOOD