Professor in the Graduate School of Public and International Affairs. Her research interests are in African politics, security and development, security privatization and postcolonial theory. She is the author (with M.C. Williams) of Security Beyond the State: Private Security in International Politics (Cambridge University Press, 2011) and Disciplining Democracy: Development Discourse and the Good Governance Agenda in Africa (Zed Books, 2000). She is joint-editor of the journal African Affairs.