Then, in January 1990, Vaclav Havel appointed Frank Zappa as "Special Ambassador to the West on Trade, Culture and Tourism," much to the disgruntlement of U.S. Secretary of State, James Baker, who is famous for declaring: "You can do business with the United States or you can do business with Frank Zappa." Still, Vaclav Havel's friendship with Frank Zappa grew, and Zappa shared his ideas about increasing tourism to Czechoslovakia, and explained the concept of credit cards which were then an unknown quantity in this part of the world. It was Frank Zappa's brief interlude in the world of international trade and diplomatic relations—and the vantage-point was Prague.