The Martins, a Mennonite family from Fortuna, Mo. use a construction parking area adjacent to Lambert Field to view the coming and going of commercial airliners. They last came to the airport 14 years ago and were surprised to see the old viewing area gone and construction for airport expansion underway. When informed that due to post 9/11 security concerns such viewing areas were to be eliminated they responded. "It is a free sky." They were chaufffeuring a group of Amish visiting relatives at the time.