Is Time Up for TikTok?

Following TikTok CEO Shou Zi Chew's first appearance before Congress, CNN's Abby Phillip closely examines the popular app and the efforts by the White House, lawmakers from both parties, and some schools to restrict the app over security concerns. The CNN Primetime special will analyze TikTok's response to the criticism, why the app is so popular, its effect on teens, and the potential threat to national security.