His practice focused on litigation involving securities, mergers and acquisitions, contracts, and antitrust. Gates approved of many decisions that led to antitrust litigation over Microsoft's business practices. Federal antitrust laws provide for both civil and criminal enforcement of antitrust laws. The complex deal drew immediate objections from labor unions, consumer advocates and antitrust regulators. Gilmore accuses DNSBL operators of violating antitrust law. Provisions encouraged unions and suspended antitrust laws. The action was approved by antitrust regulators. EDS accused CA of breach of contract, misuse of copyright and violations of antitrust laws. The discipline arose partly out of a critique of trade unions and U.S. antitrust law. The suits were dismissed for presenting insufficient evidence of antitrust violations. The law's treatment of monopolies is potentially the strongest in the field of antitrust law. IATA enjoyed immunity from antitrust law in several nations. These strict licensing measures backfired somewhat after Nintendo was accused of antitrust behavior. In the European Union, it is referred to as both antitrust and competition law. In September 2007, South Korean regulators accused Intel of breaking antitrust law.