The film "Language Matters" asks what we lose when languages die and how we can save them. It was filmed around the world: on a remote island off the coast of Australia, where 400 Aboriginal people speak 10 different languages, all at risk; in Wales, where Welsh, once in danger, is today making a comeback; and in Hawaii, where a group of Hawaiian activists is fighting to save the native tongue.
University of Michigan professor Carmel O'Shannessy has discovered a language born just a few decades ago. "Light Warlpiri" is spoken in the aboriginal community of Lajamanu in the Northern Territory of Australia.