The concluding chapter picks up the themes of the book, namely the rational and calculated character of terrorism and the open society it operates in, and it introduces to this setting the relevance of religiously motivated terrorism. This article focuses on the revitalized identity group as the new actor on the terrorist scene in the aftermath of 9-11. Ignorance of the motivation and sacrifice of this new and powerful actor will impede the sacred task of counterterrorism. These, in turn, prosper on grievances and deprivation, which are, in the final analysis, the real breeders of political violence.