Growing number of schools across U.S. require students to lock away phones

More schools across the country are requiring students to lock away phones during school hours. CBS News' Meg Oliver spent the day at a high school in Newburgh, New York, to see how going phone-free has transformed the school experience. She also sat down with a renowned social psychologist who has been researching the connection between phone use and declining mental health, calling it "worse than vaping."