FILE - In this Aug. 23, 2008 file photo, Tara Braun uses a ticket kiosk with her sons John, 6, and Charlie, 5, at John F. Kennedy International Airport in New York. Self-serve ticket kiosks and other electronic screens and gadgets aren't exactly new at airports around the world, but some travelers are hesitant _ maybe a little scared _ about using them. They prefer the old-fashioned comfort of face-to-face contact with an agent, even if waiting in line slows them down.