In the nineteen-fifties, the Leo Burnett advertising agency helped invent Tony the Tiger, a cartoon mascot who was created to promote Frosted Flakes to children. In 1973, a trailblazing nutritionist named Jean Mayer warned the U.S. Senate Select Committee on Nutrition and Human Needs that ... junk foods could be described as empty calories. He questioned why it was legal to apply the term "cereals" to products that were more than fifty-per-cent sugar. Children's-food advertisements, he claimed, were "nothing short of nutritional disasters." Mayer's warnings, however, did not lead to a string of state bans on junk food. Advertising continued to target children, and consumers of all ages were free to buy and consume any amount of Frosted Flakes. This health issue was ultimately seen as one that families should manage on their own. In recent years, experts have been warning that social media harms children. Frances Haugen, a former Facebook data scientist who became a whistle-blower, told a Senate subcommittee that her ex-employer's "profit optimizing machine is generating self-harm and self-hate"especially for vulnerable groups, like teenage girls." "It is time to require a surgeon general's warning label on social media platforms, stating that social media is associated with significant mental health harms for adolescents," Vivek Murthy, whose second term as the U.S. Surgeon General ended on Monday, wrote in an opinion piece last year.