"I like to go out for walks, but it's a little awkward to push the baby stroller and carry a shotgun at the same time." -- housewife from Churchill, Manitoba Yes, welcome to Churchill, Manitoba. Year-round human population: 943. Yet despite the isolation and the searing cold here at the arctic's edge, visitors from around the globe flock to the town every fall, driven by a single purpose: to see polar bears in the wild. Churchill is...