From the perspective of those who live in Herot Hall, the suburb is a paradise. Picket fences divide buildings -- high and gabled -- and the community is entirely self-sustaining. Each house has its own fireplace, each fireplace is fitted with a container of lighter fluid, and outside -- in lawns and on playgrounds -- wildflowers seed themselves in neat rows. But for those who live surreptitiously along Herot Hall's periphery, the subdivision is a...