The popular video app went dark in the United States late Saturday and then came back around noon on Sunday, even as a law banning it took effect.

President-elect Donald Trump and his running mate JD Vance appeared solemn as they placed wreaths at the Tomb of the Unknown Soldier during a ceremony at Arlington National Cemetery Sunday. "Food Wars" hosts Harry Kersh and Joe Avella travel across New Orleans to find the best seafood boil in the city.

But the law’s seeming fragility, with an incoming president already scheming to unravel it, highlights something else just as clearly: How few tools American leaders have available to address the risks of online content.

When U.S. users try and use the app, it pauses and they're greeted with the following message: "A law banning TikTok has been enacted in the U.S. Unfortunately, that means you can't use TikTok for now.