In her Straus Public Lecture on November 28, 2011, Professor Seyla Benhabib analyzed the clash between democratic sovereignty and international law.
See her lecture:
"Democratic Sovereignty and International Law: The Contemporary Debate" (video)
[1 hour & 28 minutes]
Seyla Benhabib is Professor of Political Science and Philosophy at Yale University. For the academic year 2011-2012, she is a fellow at the Straus Institute for the Advanced Study of Law & Justice, New York University.
(Thanks to Reza Javaheri for the pointer!)