The Supreme Court has upheld a new law that could ban TikTok in the U.S. unless its Chinese parent company divests from the very popular video-sharing social media app. The justices said the "Protecting Americans from Foreign Adversary Controlled Applications Act" doesn't violate the First

While TikTok remains hugely popular in Brazil, Indonesia and other markets, its 170 million users in the United States are its most valuable.

The Supreme Court on Friday unanimously upheld the federal law banning TikTok beginning Sunday unless it's sold by its China-based parent company, holding that the risk to national security posed by its ties to China overcomes concerns about limiting speech by the app or its 170 million users in the United States.