frequent flyer miles. millions of americans have these. lots of people rely on them for their vacations, for all sorts of personal travel, and they feel like it's a form of property. the airline is arguing it's not a form of property, that under a federal law, this is something that's a gift, that airlines gave them and they can tame them away for whatever reason they like. and but several justices said that just doesn't sound right. this is something we have come to expect. and airlines have to act at least somewhat rationally, or they can be sued. and that was the tension in the courtroom. and's got big stakes for a lot of people. >> are you surprised that the supreme court decided to hear these arguments? >> not really, wolf. you know, one of the dirty little secrets of the supreme court is they take lots of really boring cases. this case is a lot more interesting than most of them. and you can see them in the argument today. the justices were really into it. these were obviously nine people who have frequent flyer miles.