The well-known social critic Dennis Prager, debating the Oxford atheistic philosopher Jonathan Glover, raised this thorny question: If you, Professor Glover, were stranded at the midnight hour in a desolate Los Angeles street, and if, as you stepped out of your car with fear and trembling, you were suddenly to hear the weight of pounding footsteps behind you, and you saw ten burly young men who had just stepped out of a dwelling coming toward you, would it or would it not make