 He also sits on the advisory board of H5, a firm specializing in electronic discovery for legal cases.Miller has argued cases in all of the United States courts of appeals and several before the U.S. Supreme Court.He has worked in the public interest in the areas of privacy, computers, copyright, and the courts and has served as a member and Reporter of the Advisory Committee of Civil Rules of the Judicial Conference of the U.S. by appointment of two Chief Justices of the United States, as Reporter and Advisor to the American Law Institute, as a member of a special advisory group to the Chief Justice of the United States, and as a member of various American Bar Association committees.