The Justice Department’s investigation of American Airlines for allegedly slashing fares to snuff out competition was the topic of discussion at a Cato Policy Forum, “Big Airlines, Small Airlines, Big Government: Who’s Preying on Whom?” John R. Lott Jr., author of Are Predatory Commitments Credible? argued that vigorous competition shouldn’t be mistaken for predation. James H. Burnley IV, former secretary of transportation; Mark Kahan, CEO of Spirit Airlines; and William E. Kovacic of George Washington University debated whether the suit against American Airlines is good for the industry.