According to a recent article (Ghosh, 2011), the Air Transport Association (IATA) forecasts “that there will be 3.3 billion air travelers by 2014, up from 2.5 billion in 2009.” The growth in passenger traffic volume and other trends such as increased competition and a growing demand for customer experience are leaving airports with many challenges for the future. Airports face escalating costs, revenue growth constraints, and an increasing dissatisfied customer base. In addition, a survey among senior airport executives indicated that the common concerns of airports could be clustered into three broad categories: rising costs, customer satisfaction, and revenue constraints (refer to Fig. 1). The main concern is the increasing security costs, which is directly related to the rapid growth of the passenger traffic volume. The increased threat of terrorism is another reason, as it had resulted in the introduction of more rigorous border controls and safety procedures (Fredickson and LaPorte, 2002).