Congress says the popular video app poses a looming threat to the nation’s security because of its Chinese owner. What the justices decide could determine if the app is shut down.

The law that could ban TikTok is coming before the Supreme Court. The justices largely hold the app’s fate in their hands as they hear the case Friday.

By Andrew Chung, John Kruzel and David Shepardson WASHINGTON (Reuters) - The Supreme Court heard arguments on Friday over the legality of a statute that would ban or force the sale of TikTok by Jan. 19 in the United States in a case that pits free speech rights against national security concerns over the widely used short-video app owned by Chinese company ByteDance.