Intelligence officers love a great train station, but not because of their historic roots. Trains offer unique safety for making an exchange. If you and the person you’re meeting both board the train clean, you’re safe because new people can’t board. Trains are frequently favored by high ranking case officers who face daily surveillance. Airports also work well due to the increased sophistication of security—your man cannot show up carrying a bomb or gun. At an airport, the preferred location is a café beyond the main security screening checkpoint. But train stations are traditional, and if they’re named Union Station, so much the better.