 In fact, he says the U.S. is already behind in taking steps to understand the impact of social media on younger Americans. And a warning label would be a necessary first step to try to raise awareness about the risks and also potentially limit some of the screen time from those users online. I mean, to be classified as one of the more serious health risks of our time. I mean, how dire are we talking about from his point of view and from family's points of view?