His work has appeared in Human Rights Quarterly; Research on Social Movements, Conflict and Change; Sociological Inquiry; and Research on Democracy and Society. With Jackie Smith and Charles Chatfield, he co-edited Transnational Social Movements and Global Politics: Solidarity beyond the State (Syracuse University Press, 1997), and with Chris Hausmann, he guest co-edited a special issue of the Journal for Peace and Justice Studies, "Peacebuilding in Africa" (2011). He is a member of the Association of Catholic Colleges and Universities Ad Hoc Committee on Peace and Justice Education.