Robert MacCoun, Professor of Law and Public Policy at the University of California, Berkeley law school, spoke on Military Unit Cohesion and the Repeal of "Don't Ask, Don't Tell" at ASU’s Sandra Day O’Conner College of Law. MacCoun wrote the chapter addressing the likely effects on military unit cohesion of allowing acknowledged gays and lesbians to serve, for RANDS's landmark 1993 study of sexual orientation and U.S. military policy.