In Airport Development planning, what is the importance of an airport master plan, what is its purpose and what are some of the challenges that may be faced in its development? Explain the importance of non-aeronautical revenues for airports and the challenges faced by contemporary airports in planning for the future generation of nonaeronautical revenue. Discuss the benefits and risks of different new technologies such as facialrecognition technology at airports. Discuss and compare the different master plan approaches such as national guidelines, processes, and public consultations between Australia and one other country of your choice