” Bollard walls are made up of sturdy, vertical posts that are spaced to provide visibility to the other side but are difficult to walk through”
Why would i care about making sure Mexicans can look through the wall and stare at us?
Only the thin ones can get through?
I'm guessing that is so our border agents can see whether there is any hanky panky going on on the other side, such as tunnels, ladders, explosives, etc.