"Campbell's 1978 issue proved a watershed moment for cheesecake. In Brazil, Campbell had persuaded model Cheryl Tiegs to pose for a throwaway shot in a white fishnet top, her nipples fully exposed. Somehow the shot made its way into the magazine. According to The Franchise,Michael MacCambridge's excellent history of the magazine, nasty letters poured into Time-Life headquarters—more than 340 subscriptions were cancelled—and the swimsuit issue reached new heights of ignominy. But in some ways, the Tiegs fiasco was also a logical endpoint. Barring nudity, the Sports Illustrated model had nothing left to reveal. Thus for the next few decades the editors had to maintain a careful balance: They had to make the issue seem much racier than it actually was, while still maintaining its wholesome aesthetic."