Includes bibliographical references and index.

Figures and tables -- Contributors -- A contentious politics approach to the explanation of radicalization / Lorenzo Bosi, Chares Demetriou and Stefan Malthaner -- Dynamics of interaction between oppositional movements/groups and the state -- The mechanisms of emotion in violent protest / Hank Johnston -- A typology of backfire mechanisms / Lasse Lindekilde -- Processes of radicalization and deradicalization in western European prisons (1965-1986) / Christian G. De Vito -- Competition and conflict : dynamics of intra-movement interaction -- Competitive escalation during protest cycles : comparing left-wing and religious conflicts / Donatella della Porta -- Intra-movement competition and political outbidding as mechanisms of radicalization in Northern Ireland, 1968-1969 / Gianluca De Fazio -- The limits of radicalization : escalation and restraint in the South African liberation movement / Devashree Gupta -- Dynamics of meaning formation : frames and beyond -- Contentious interactions, dynamics of interpretations, and radicalization : the islamization of Palestinian nationalism / Eitan Y. Alimi and Hank Johnston -- Radical or righteous? : using gender to shape public perceptions of political violence / Jocelyn Viterna -- From national event to transnational injustice symbol : the three phases of the Muhammad cartoon controversy / Thomas Olesen -- Dynamics of (transnational) diffusion -- Radicalization from outside : the role of the anarchist diaspora in coordinating armed actions in Franco's Spain / Eduardo Romanos -- Protest diffusion and rising political violence in the Turkish '68 movement : the Arab-Israeli war, "Par's may" and the hot summer / Of 1968 Emin Alper -- The evolution of the al-Qaeda-type terrorism : networks and beyond / Ekaterina Stepanova -- Conclusion / Martha Crenshaw.