“…Finally, such events engender more negative attitudes towards people/groups seen as embracing opposing norms and values to those of the ingroup (Greenberg, Pyszczynski, & Solomon, 1986). In addition, the ability of terrorist acts to activate the idea of death favors an increase in prejudice against outgroups (Das et al, 2008;Kastenmüller, Greitemeyer, Ai, Winter, & Fischer, 2011), as does the perception of threat produced by a terrorist attack (Doosje et al, 2009;Hitlan et al, 2007). Terrorist attacks can also increase an citizens' perceptions of a physical threat, especially to their own safety, and a symbolic threat to their identity, their values and their way of life (Doosje, Zimmermann, Küpper, Zick, & Meertens, 2009;Hitlan et al, 2007).…”