After the jets hit the World Trade Center and the Pentagon on September 11, we were hypnotized by the television images and devastated by the immense destruction and the great loss of lives. Many of us questioned whether our usual activities were worth doing and wished that we could help. This special issue of Analyses of Social Issues and Public Policy was conceived as a way to be helpful to faculty teaching during these difficult times, to their students, and to other readers by offering them some of the ideas and research of psychologists who have exper-tise in areas related to terrorism and its consequences.