Airlines - What's the Trend in Consolidation?

Am, it seems like when buffet has got caught in an industry, i mean, the carlines, for example. The most important thing of all this is bargaining power, you know. Rivalry is only one part of that. If they were able to collude, to work together to set price and to understand that no one would reduce prices,  that's some sort of cartel,. They would make a lot of money. But there are other forces that we're talking about could be a problem.