When a libertarian says that the most basic individual right is the right not to be aggressed against, a clever interlocutor may accuse the libertarian of begging the question, of stuffing the rabbit into the hat. The trick, the critic will say, is in the word aggress: libertarians allegedly rig the game by restricting the category of aggression to only the actions they disapprove of, thereby institutionalizing many corrupt activities. For example, If Jones tells Smith to get off land to which Jones has legal title, is it really clear that Smith is in the wrong and Jones is in the right? The...