The tobacco industry is made up of the complex of primary suppliers, manufacturers, distributors (both wholesale and retail), advertising agencies, and media outlets that produce, promote, and sell tobacco products, as well as the law, public relations, and lobbying firms that work to protect these products from stringent public-health regulation and control. In due time, however, these precautions failed. The industry evolved in the late nineteenth and early twentieth century from many, relatively small enterprises that produced tobacco products for puffing, snuffing, and chewing. The products of these small firms delivered nicotine to the nasal and oral mucosa. With the evolution and refinement of the cigarette, the industry developed first into a monopoly and then into an oligopoly in which a handful of major producers made this more sophisticated nicotine delivery system: a device that delivers nicotine by inhalation to the lungs and thence rapidly to...