- Lectures at the seminar of the department of International Relations LSE (dec 2003), at the university of Northwestern Chicago (sept 2003).
- Colloquium in Paris about « l’état d’exception et les politiques antiterroristes après le 11 September » Elise June 2003
- Responsible of the interdisciplinary seminar TERRA about asylum migration and security in Europe with Jerome Valluy, Smain Lacher, Annie Collowald February 2003. One meeting a month.
- Participant and responsible of the International political sociology panel with Charles Tilly, Friedrich Kratochwil, Michael Williams, Georges Thomas, Martin Heisler, Vivien Jabri. Portland, February 2003.