Federal officials are investigating American, United, Delta and Southwest airlines to determine if they are coordinating efforts to keep capacity down so that ticket prices remain high. If they are found in violation of antitrust laws, they could face huge fines. Executive Editor Jim Asker and Jens Flottau, managing editor for commercial aviation, discuss the case and how it relates to the carriers’ battles against competitors based in the Middle East and Norwegian Air International. They also recount a 1982 incident that landed an American Airlines CEO in court for a conversation with a competitor.