Part of the problem for people here is, dashed lines on maps do mean something. They're very common, and their meaning in the US is widely understood. Especia

Part of the problem for people here is, dashed lines on maps do mean something. They're very common, and their meaning in the US is widely understood. Especially when maps are used in movies, it's long since been a cliché (and leads to one of the best jokes in "The Emperor's New Groove").