Acknowledgments . . xi Acronyms . . xv 1 Political Violence and Social Movements: An Introduction . . 1 2 Escalating Policing . . 32 3 Competitive Escalation . . 70 4 The Activation of Militant Networks . . 113 5 Organizational Compartmentalization . . 146 6 Action Militarization . . 174 7 Ideological Encapsulation . . 204 8 Militant Enclosure . . 235 9 Leaving Clandestinity? Reversing Mechanisms of Engagement . . 263 10 Clandestine Political Violence: Conclusions . . 282 Primary Sources . . 295 Bibliographical References . . 297 Index . . 321