Some things I've written -- I'll add more periodically.
Here's my 2005 essay
"Superhero Revisionism in Watchmen and The Dark Knight Returns,"
Superheroes and Philosophy, edited by Tom Morris and Matt Morris
(Chicago: Open Court, 2005).
What did I think of the film version? Liked it a lot.
Here's my essay on disaster relief, from Liberty and Hard Cases, T. R. Machan (ed.), Hoover Institute Press, 2002.
Here is a podcast of a talk I gave "Property Rights as Human Rights" - this was at St. Lawrence University, 11/4/2010. (I gave a version of this talk at Providence College 10/11/12, but that wasn't recorded.)