This chapter identifies how postdisaster patient triage and management can incorporate behavioral/psychiatric assessment and treatment, merging behavioral and medical approaches in the differential diagnosis and early management of common psychiatric syndromes among medical-surgical disaster or terrorism casualties. A postdisaster screening examination to triage and identify early psychiatric casualties can be thought of as a tertiary survey that focuses on the most common psychiatric sequelae. Government and organizational responses play an important role in limiting psychological contagion and may help to lessen overburdening of the healthcare system after a terrorist event or disaster. In a postdisaster hospital or hospice setting, depression is common. The utility of antidepressant medications is limited by the several weeks needed for the agents to be effective. Careful management of the public education and risk communication aspects of disaster and terrorism has multiplier effects in terms of preventing inappropriate and costly utilization of healthcare resources.