With AT&T and Time Warner, Battle Lines Form for an Epic Antitrust Case

[Commentary] If the government goes to court to block the merger of AT&T and Time Warner, as seems increasingly likely, it may well be the antitrust case of the decade, even without the claims of presidential meddling that have already engulfed the deal in partisan controversy. A lawsuit by the Justice Department, along with its earlier, widely reported demands that AT&T sell either DirecTV or Turner Broadcasting to gain approval for the deal, would mark a radical departure from decades of antitrust enforcement policy, both in defining what is an unlawful anticompetitive merger and in fashioning a remedy to cure the problems. That’s because the combination of AT&T and Time Warner is what’s known as a “vertical” merger, meaning that the two companies don’t compete to any significant degree in their primary lines of business, which are telecommunications (AT&T) and entertainment (Time Warner). There would be the same number of competitors in both fields after the merger as there were before it.