(May 18, 2014) -- If there is a reliable laugh line in antitrust, it is to refer to the social and political goals of enforcement actions. That is sure to draw a snicker and a roll of the eyeballs. The modern antitrust consensus focuses instead on competition and economic analysis. That focus has been on display this month, when, for example, the parties to the proposed Comcast / Time Warner Cable merger defended on the grounds that the two firms “operate in entirely separate and distinct geographic areas” and thus that “there will be no reduction in competition . . . .”...