A little over a week ago, I was driving with my father from Phoenix to San Diego. We were in the hills above San Diego when traffic on Interstate 8 came to an abrupt stop. Soon we saw signs telling us we were approaching a Border Patrol checkpoint. We noticed that the Border Patrol officer was having a long conversation with the driver of the car in front of us, finally motioning him over to the side where there were a number of well-armed officers. When I drove up, he motioned me on through with a wave and a simple, “Have a nice day.”