Stephen Mihm Last week, Vivek Murthy, surgeon general of the United States, warned that the use of social media among adolescents has contributed to a surge in anxiety and depression. In a widely read op-ed, he argued that Congress should take action, forcing the social-media giants to attach warning labels on their products in much the same ways that it did with cigarette … [Read more...] about Cigarette labels were bad. Social-media labels would be worse.