This is how social change ultimately happens: enlightened values do not change behavior; the contours of self-interest are altered and new values rush into the vacuum.

What’s the story here, Karl?’ Kevin asked.’Hard as it is to believe, these people are slaves,’ Karl explained.’Slaves?’ I asked skeptically.’Well, you might not call them that but they are virtual slaves. They don’t receive...

When we came out of the cookhouse, we found the boy’s father, the Indian man who had been grazing the horses in the pasture, waiting for us. He wanted someone to tell his troubles to....