Judge Diarmuid O'Scannlain, a 1992 LL.M. graduate of the University of Virginia School of Law, discusses how the U.S. constitutional structure affects the work of a federal judge on March 6 at UVA Law. As a judge on the U.S. Court of Appeals for the Ninth Circuit, O’Scannlain has participated in over 11,000 federal cases and has written hundreds of published opinions on a broad range of subjects including constitutional law, international law, securities law, administrative law and criminal law.