One of society's biggest challenges is to prevent terrorist attacks. Good intelligence will assist with identifying the risks, the terrorist capabilities, and current trends, but it is inevitable that some attacks will succeed. This considered, the need for planning has never been greater—in fact it is essential. Based on this, those involved have a responsibility to plan for numerous potential situations; the planning should include preparedness, response, and recovery activities. After a terrorist attack where there are casualties or mass casualties, in almost all situations we have to deal with the victims. Dealing with mass-casualty incidents is not a daily occurrence for those who would be involved in the chain of survival, and therefore it requires specific organization and protocols. Terror medicine includes medical management from the scene to post-hospital care, as well as a multiagency approach.