This is a story about an American dog: my dog, Dexter. And because Dexter is a pit bull, this is also a story about the American dog, because pit bulls have changed the way Americans think about dogs in general. Reviled, pit bulls have become representative. There is no other dog that figures as often in the national narrative—no other dog as vilified on the evening news, no other dog as defended on television programs, no other dog as mythologized by both its enemies and its advocates, no other dog as discriminated against, no other dog as wantonly bred, no other dog as frequently abused, no other dog as promiscuously abandoned, no other dog as likely to end up in an animal shelter, no other dog as likely to be rescued, no other dog as likely to be killed. In a way, the pit bull has become the only American dog, because it is the only American dog that has become an American metaphor—and the only American dog that people bother to name. When a cocker spaniel bites, it does so as a member of its species; it is never anything but a dog. When a pit bull bites, it does so as a member of its breed. A pit bull is never anything but a pit bull.