This week, IDN examines the dispute resolution methods of early societies, and how they evolved in the last 10,000 years into the mechanisms that we see in today's functioning societies: Mike's guest is American Museum of Natural History curator, anthropologist Robert L. Carniero. Their wide-ranging discussion covers: the evolution of the state, and the orderly introduction of legal systems with formal methods of conflict resolution; dispute resolution in societies that have remained in clusters of small, autonomous groups; and conflict resolution's presence and importance in keeping larger groups together and productive.