Introduction: from the world to Europe and vice versa: an introduction to why prejudice is a global security threat -- Part I : The facts ; Changes in the international system and consequences in terms of mobility ; 9/11 : The attack on the practice of intercultural dialogue and processes of radicalization -- Part II : The narratives and the threats ; The spiral of the securitization of migration and the Mediterranean crises ; Ordinary security threats: Inclusion, exclusions and the question of security ; Extraordinary security threats: Different fashions of extremism -- Part III : The alternatives ; Intercultural dialogue: Towards a social de-construction of terrorism ; conclusions

1. Emigration and immigration -- Government policy
2. Emigration and immigration -- Political aspects
3. Security
4. International
5. Terrorism -- Prevention -- Government policy