Anyone who flies knows it can be a trial getting through airport security, especially at the world’s busiest airport. TSA agents can make the process easier, or more difficult. Personally, I usually approach the security desk like the “Seinfeld” characters in the “Soup Nazi” episode: step quietly, minimal eye contact, no chatter. Today, we hear from an Atlantan who had a disturbing TSA experience recently, and the airport security chief writes about agent training and customer service. In our third column, a north Fulton County senator suggests that institutions stagger shifts to relieve traffic congestion.