NOT GOING SILENT: A growing number of American Indian tribes are trying to revitalize their languages, which in some cases are spoken by only a small handful of people. And increasingly, they're enlisting technology in the effort.
WHY THE NEED?: Linguists estimate that about 200 Native American languages are spoken in the U.S. and Canada, with another 100 already extinct. A majority of the languages is spoken by aging tribal members.
THE METHODS: Tribes are doing everything from apprenticeship programs that pair a fluent elder with a student, to immersion school programs. Many also incorporate technology such as YouTube videos of native speakers or Google Hangout video chats for live, long-distance conversations.