Jonathan P. Caulkins is H. Guyford Stever Professor of Operations Research and Public Policy at Carnegie Mellon University's Heinz College of Public Policy and Information Systems Management.
Beau Kilmer is a senior policy researcher at the RAND Corporation, where he codirects the RAND Drug Policy Research Center.
Mark A. R. Kleiman is a professor of public policy and the director of the Crime Reduction and Justice Initiative at New York University's Marron Institute of Urban Management.
Kevin T. Collins is a New York actor and director who can be seen Off-Broadway, on television, and in films. An Audie Award-winning audiobook narrator, he has narrated over 225 titles.