In corporate-merger warfare, the political counterattack has lately become a favorite weapon. Established companies have been delighted by the many federal investigations of upstart conglomerates and by the Justice Department's legally adventuresome crusade against them. Last week Justice's chief trustbuster, Richard McLaren, struck an unexpected if comparatively mild blow against the business Establishment.
Without comment, he released a hitherto-secret report by a Johnson Administration antitrust task force headed by Phil C. Neal, dean of the University of Chicago law school. The group recommended new laws that would empower the Government to break up companies in industries "where monopoly power is...
