In an unprecedented move, the U.S. chemical industry [3] is attempting to discredit two historians who have detailed the industry's efforts to hide links between their products and cancer.

"Attorneys for Dow [4], Monsanto [5], Goodrich, Goodyear, Union Carbide and others have subpoenaed and deposed five academics who recommended that the University of California Press publish the book Deceit and Denial - The Deadly Politics of Industrial Pollution [6], by Gerald Markowitz and David Rosner. The companies have also recruited their own historian to argue that Markowitz and Rosner have engaged in unethical conduct," Jon Wiener writes in the Nation. "The reasons for the companies' actions are not hard to find: They face potentially massive liability claims on the order of the tobacco litigation if cancer is linked to vinyl chloride-based consumer products such as hairspray. The stakes are high also for publishers of controversial books, and for historians who write them, because when authors are charged with ethical violations and manuscript readers are subpoenaed, that has a chilling effect. The stakes are highest for the public, because this dispute centers on access to information about cancer-causing chemicals in consumer products."