Compare PengAtlas Maps 2.1 (Top Merchandise Importers and Exporters), 2.2 (Top Service Importers and Exporters), and 2.3

Question:

Compare PengAtlas Maps 2.1 (Top Merchandise Importers and Exporters), 2.2 (Top Service Importers and Exporters), and 2.3 (FDI Inflows and Outflows) and note that the United States is number one in all categories except one. What is it? Many people feel that is a big problem-do you? In your opinion, what-if anything-should be done about that?