My boss wanted to investigate some sinkholes on the runway at LaGuardia to calibrate a device, and was confused that I (the token American) couldn't just call up the Port Authority of New York and get our truck of equipment onto a runway the same week. I tried to explain to a coworker that American airports and the Port Authority in particular are very sensitive about what they allow airside, and he said "oh, so we don't get hit by a plane." I had to explain the last 25 years of American history to him.