One lesson is to expect the unexpected and adjust accordingly. A second lesson is to establish an "ad hocracy," i.e., a group of select persons qualified to address the crisis, rather than attempt to work through the existing entrenched bureaucracy. Persons who think solely in terms of doing something, regardless of safety or necessity, must be restrained. Another lesson is to manage the emergency at the site. Also, to search for and evaluate facts and their sources again and again, and communicate these facts truthfully and carefully to the public. In the case of government crises, partisanship should be avoided, and no emergency is over until steps have been taken to ensure that the crisis cannot recur. The public will long remember its anxiety in the midst of the crisis and will demand that prompt and effective steps be taken to keep the crisis from being repeated.