How is an incident's flow connected with the structure of a public? What structural difference exists between the public and a hidden, unnoticed, or only subsequently recognized course of an incident?The contributions to this volume show that an event becomes an incident precisely because it is made public if the respective public structure includes all media conditions under which an event appears to be an incident at all. Otherwise it is precisely by surpassing previous limits, habits, and rules of the public - transforming the structure of the public - that the event becomes an incident.