In 1982 the Reagan administration used the Sherman Act to break up AT&T into one long-distance company and seven regional "Baby Bells", arguing that competition should replace monopoly for the benefit of consumers and the economy as a whole. The pace of business takeovers quickened in the 1990s, but whenever one large corporation sought to acquire another, it first had to obtain the approval of either the FTC, FCC or the Justice Department. Often the government demanded that certain subsidiaries be sold so that the new company would not monopolize a particular geographical market. In 1999 a coalition of 19 states and the federal Justice Department sued Microsoft. A highly publicized trial found that Microsoft had strong-armed many companies in an attempt to prevent competition from the Netscape browser. In 2000, the trial court ordered Microsoft to split in two, preventing it from future misbehavior. The Court of Appeals affirmed in part and reversed in part. In addition, it removed the judge from the case for discussing the case with the media while it was still pending. With the case in front of a new judge, Microsoft and the government settled, with the government dropping the case in return for Microsoft agreeing to cease many of the practices the government challenged. Preventing collusion and cartels that act in restraint of trade is an essential task of antitrust law. It reflects the view that each business has a duty to act independently on the market, and so earn its profits solely by providing better priced and quality products than its competitors. restraint of trade  The Sherman Act §1 prohibits "[e]very contract, combination in the form of trust or otherwise, or conspiracy, in restraint of trade or commerce." This targets two or more distinct enterprises acting together in a way that harms third parties. It does not capture the decisions of a single enterprise, or a single economic entity, even though the form of an entity may be two or more separate legal persons or companies. In "Copperweld Corp. v. Independence Tube Corp." it was held an agreement between a parent company and a wholly owned subsidiary could not be subject to antitrust law, because the decision took place within a single economic entity. This reflects the view that if the enterprise (as an economic entity) has not acquired a monopoly position, or has significant market power, then no harm is done. The same rationale has been extended to joint ventures, where corporate shareholders make a decision through a new company they form. In "Texaco Inc. v. Dagher" the Supreme Court held unanimously that a price set by a joint venture between Texaco and Shell Oil did not count as making an unlawful agreement.