The Language Barrier
I just went on an international trip and when re-entering customs continued to be amazed at the selection of people to work in those areas. I could barely understand the US citizen employees that were talking to and trying to usher people through lines. Visitors was morphed into "BeeZeedors". Why not say "non-US"!? They were getting exasperated with the bewildered foreigners who had no clue what they were saying!