the u.s. surgeon general recently issued a warning that social media carries what he calls a profound risk of harm to the mental health and well- being of children and adolescents. several school districts have filed suit against the tech giants, alleging they are contributing to a mental health crisis amongst youth, and hundreds of families are now suing, including a connecticut woman named tammy rodriguez, a mother to selena, and we spoke for cnn's new show, the full story with anderson cooper, here's a little peek.>> reporter: what tammy did not know the time was that selena had figured out how to block her mother from seeing her online