Even though Ciudad Juarez is just a few hundred yards from El Paso, it is unmistakably in another country. There is a wall, for one thing.
This part reads "We are not illegals, we are workers, we are not criminals."
Also, the supermarkets have aisles full of boxes of milk.
And, finally, Noah's grandparents live just a few blocks from an amusement park, and he feels right at home there conducting business!