When some executives of the bathroom fixtures industry gathered at their trade association meeting seven years ago, it seemed only natural that they get together over cocktails in the Sheraton-Chicago Hotel room of Daniel Quinn. He was then president of the Plumbing Fixture Manufacturers Association and a vice president of American Standard Inc., the industry leader. Congeniality was the order of the day.
William Kramer, executive secretary of the P.F.M.A., thought that the conversation centered more on price-fixing than football. As a result, he used a hidden recorder to keep track of subsequent conversations among industry executives. In 1963, Kramer fled...