From the archives: How is language changing and what do we lose when a language disappears forever? In July we talked with linguist and author David Crystal. His latest work is “A Little Book of Language” (Yale, 2010).

How is language changing and what do we lose when a language disappears forever? We’ll find out this hour with linguist and author David Crystal. His latest work is “A Little Book of Language” (Yale, 2010).