Maddie Kahn writes: Deaf culture has its own language, its own social norms, its own art forms, its own theater. But it's under threat. Why? Because most parents of deaf children now choose to use technology to help their kids hear. In this piece, MATTER explores why a revolutionary technology stands accused of killing a culture.
FORTUNE'S FUN FACTS TO KNOW AND TELL:
A black panther is really a leopard that has a solid black coat
rather then a spotted one.