The Trump administration is expected to again extend a September 17 deadline for China's ByteDance to divest the US assets of short-video app TikTok or shut it down, a source familiar with the matter told Reuters. It would be the fourth reprieve granted by President Donald Trump from federal enforcement of a law that originally gave ByteDance until January 2025 to sell or shut down the popular social media platform. Last month, Trump said he had US buyers lined up for the app and could further extend the deadline. But he was equivocal on Sunday when asked about the app's future. "I may or may not, we're negotiating TikTok right now. We may let it die, or we may, I...