Can't believe the arrogance of this airline. The President should simply ban AC from US airspace until all refunds and fines are paid. While such a ban could be challenged in court the airline stands to lose a lot of money from passengers who don't want to book for fear of being stranded.Another reason airlines feel they can get away with things is that airline managers are not liable, only the company. Governments should start fining the employees who make these decisions. You'll see them make the right decisions in the future.