During negotiations, labor unions have often harassed management with slowdowns and other nuisance tactics to get better contracts. Three years ago, the National Labor Relations Board tried to ban such economic pressures, said they constituted a "lack of good faith" in collective bargaining. Last week, the U.S. Supreme Court unanimously slapped down the NLRB, upheld the rights of the unions to pressure management.
The case involved a slowdown called by the Insurance Agents' International Union during a contract dispute with the Prudential Insurance Co. in 1956. The union did not call a strike, but urged its member-agents to snipe at the...