John Kleinig is Emeritus Professor of Philosophy at John Jay College of Criminal Justice and the Graduate Center, CUNY, and Professorial Fellow at the Centre for Applied Philosophy and Public Ethics, Charles Sturt University, Canberra. He is the author of, amongst others, Valuing Life (1991), The Ethics of Policing (1996), and Ethics and Criminal Justice (2008).

Simon Keller is Professor of Philosophy at Victoria University, Wellington, New Zealand. He is the author of The Limits of Loyalty (2007), which won the 2009 American Philosophical Association Book Prize, and Partiality (2013).

Igor Primoratz is Emeritus Professor of Philosophy, The Hebrew University of Jerusalem, and Adjunct Professor at the Centre for Applied Philosophy and Public Ethics, Charles Sturt University, Canberra. He is the author of Banquos Geist: Hegels Theorie der Strafe (1986), Justifying Legal Punishment (1989, 1997),Ethics and Sex (1999), and Terrorism: A Philosophical Investigation (2013). He is also editor of a number of books, including Patriotism (2002) and Patriotism: Philosophical and Political Perspectives (with Aleksandar Pavkovic, 2007).