Exclusive: U.S. opens national security investigation into TikTok - sources

NEW YORK/BEIJING/WASHINGTON (Reuters) - The U.S. government has launched a national security review of TikTok owner Beijing ByteDance Technology Co's $1 billion acquisition of U.S. social media app Musical.ly, according to two people familiar with the matter.While the $1 billion acquisition was completed two years ago, U.S. lawmakers have been calling in recent weeks for a national security probe into TikTok, concerned the Chinese company may be censoring politically sensitive content, and..