Abstract
Common explanations of terrorism, here illustrated by the work of Jessica Stern and of US State Department analysts, have two significant weaknesses. First, they homogenize terror, assuming that one type of person, group, or action accounts for most instances of its use. Second, they focus on dispositions and motives, decision logics, emotions, or cultural templates of terror-producing actors prior to their action. Adequate explanations of terror must repair these defects by a) looking systematically at variation among producers of terror and b) shifting the focus to relations among actors. Terror is a strategy employed by a wide variety of persons and groups, involving a substantial range of actions.