Points of Concurrency

There are three major airports that you are concerned with - one in Amman, one in Damascus, one in Beirut. Your task is to find a location for a fourth airport that will service the airports in all three cities. You may use the triangle points of concurrency to help you. How did you make your decision? What did you think about? What arguments can you make that your location is BEST? What do the various points of concurrency mean for this situation?