Yair Galily is Behavioral Science Professor and Senior Lecturer in Communication and Psychology at the Interdisciplinary Center, Herzliya; Senior Fellow at the Institute for Counter-Terrorism Policy (ICT); Founder and head of the research unit at the Israel Football Association; and a member of the Club Licensing Committee of the European Football Association (UEFA). Ilan Tamir is Professor at the School of Communication, Ariel University, Israel, and a visiting scholar at Harvard University, USA.