My areas of research focus on moral philosophy and philosophy of law, with special attention to the question of the moral permissibility of the use of force in for example self-defense, war, and punishment. 



Honor and Revenge: A Theory of Punishment (Springer 2012):


Justified Killing: The Paradox of Self-Defense (Lexington Books 2009).




“The Truth About Originalism,” The Pluralist (forthcoming)


"Does Animal Ethics Need A Darwinian Revolution,” Ethical Theory and Moral Practice (forthcoming)


“E.O. Wilson’s Evolutionary Ethics,” The New Atlantis 38 (Winter/Spring 2013).

"Understanding Honor: Beyond the Internal-External Dichotomy," Social Theory and Practice.

"Can Science Determine Morality? A Reply to Sam Harris," Neuroethics.

“Self-Defense, Innocent Aggressors, and the Duty of Martyrdom,” Pacific Philosophical Quarterly (2010). 91(1): 78-96.

 (with John Kaag). “Military Frameworks: Technological Know-How and Legitimization of Warfare.” Cambridge Review of International Affairs, Winter 2010.

“Torture and the ‘Distributive Justice’ Theory of Self-Defense: An Assessment,” Ethics and International Affairs 22 (2008).

“Karma, Rebirth, and the Problem of Evil: Reply to Critics”, Philosophy East and West 57: 4 (October 2007).