Any one of the numerous federal antitrust laws that prohibit collusive behavior, such as the Sherman Act. http://en.wikipedia.org/wiki/High-Tech_Employee_Antit

Any one of the numerous federal antitrust laws that prohibit collusive behavior, such as the Sherman Act. http://en.wikipedia.org/wiki/High-Tech_Employee_Antitrust_Litigation#Department_of_Justice_Antitrust_Action http://en.wikipedia.org/wiki/High-Tech_Employee_Antitrust_Li... Section 2 describes it as a felony.