He mounted a vigorous attack on white-collar crime as the Department of Justice obtained a record number of convictions of savings and loan crisis and other securities officials, defense contractors and corrupt public officials. Thornburgh established strong ties with law enforcement agencies around the world to help combat drug trafficking, money laundering, terrorism and international white-collar crime. During his tenure as attorney general, he twice argued and won cases before the United States Supreme Court. The "Legal Times" noted that Thornburgh as Attorney General "built a reputation as one of the most effective champions that prosecutors have ever had." As honorary Special Agent of the Federal Bureau of Investigation, he chaired a panel of the National Academy of Public Administration examining the FBI's post-9/11 transformation process and was a member of the FBI Director's Advisory Board. He oversaw the major environmental litigation that resulted from the Exxon Valdez oil spill in 1989.