Terrorists are named after an emotion for a reason. They use violence to produce widespread fear for a political purpose. The number of those they kill or injure will always be a small fraction of those they frighten. This creates problems for leaders, and even analysts, when they talk publicly about terrorism. On one hand, leaders need to convince the public that they are on the case in protecting them, or else they won’t be leaders for long. On the other hand, good leaders try to minimize unwarranted fear.