By: Charles Bethea, Nathan Heller, Naomi Fry, Alexandra Schwartz, Susan B. Glasser, Lauren Michele Jackson, Inkoo Kang, Andy Kravis, Rebecca Mead, Jia Tolentino, Vinson Cunningham, Timothy Snyder
A new documentary reveals social-media platforms’ iron grip on the lives of teen-agers, one that’s increasingly being linked to a slew of mental-health issues. How scared should we be?