1991The U.S. Supreme Court hears arguments in the Immigration and Naturalization Service v. Doherty case. Joseph Doherty was a member of the Irish Republican Army who escaped to the U.S. during a 1981 murder trial. The case confirmed the powers of the U.S attorney general to reopen deportation proceedings .2002Arthur Andersen LLP was sentenced to five years of probation and fined $500,000 for obstructing a federal investigation into its client, the energy company Enron.