they might be in north america or australia or elsewhere. they are just waiting for the situation to change. they will be cautious the celebrating tonight. they may not be back for several days. >> how will they prior ties -- how will they prioritize? >> normally, people will be booked on services. this gives airlines time to get through the backlog. initially, i believe it will be done on a needs basis with urgent cases first. >> tom hall of the lonely planet guide talking to us. let's take you to wear a you might call the heart of the problem. -- but take you to what you might call the heart of the problem. here is this extraordinary report just moments away from that direction.