In mid-May I flew for the first time in 14 months. Four flights took me from NYC to Greensboro, North Carolina early on a Monday morning and back home late that night. In Atlanta I had to change planes to and from Greensboro. On that day I felt an exhilaration I never experienced while flying in recent years. There was also an especially “good feel” rush as I dashed through the sprawling Atlanta airport. Frequent business flyers like me rarely...