International Law And Just War Theory - Use Of Force
National Security - WMD
Latin America (Especially OAS)
Counter-Terrorism (Including Extradition And Mutual Legal Assistance)
International Trade/Business Transactions/Economic Sanctions/etc.
Office of the Legal Adviser, U.S. State Department (1987-93); Juridical Committee of the Organization of American States (2005-08 term of office); Private International Law Advisory Committee, U.S. State Department