David Pozen is a professor at Columbia Law School. A former special assistant to Senator Edward M. Kennedy and law clerk to Justice John Paul Stevens, he has written widely on government secrecy and on constitutional law and theory. His recent academic articles include "Privacy-Privacy Tradeoffs" (University of Chicago Law Review), "Uncivil Obedience" (Columbia Law Review), and "The Leaky Leviathan: Why the Government Condemns and Condones Unlawful Disclosures of Information" (Harvard Law Review).