CNN News:美国联邦运输安全管理局禁止雇员用抖音

Which of these social media networks is owned by a Chinese company? Pinterest, TikTok, WhatsApp or Snapchat. All of these networks are owned by American companies except TikTok which was launched in 2016.
Today TikTok has hundreds of millions of users around the world. But there are new restrictions on how U.S. government workers can use the app. As of this week the Transportation Security Administration says TikTok may no longer be used for its social media outreach. The TSA is responsible for keeping America's airports secure. It employs around 50,000 security officers to help do this. And the agency says it uses several social media platforms to communicate with Americans.

Like other apps, TikTok collects information about the people who use it. But because TikTok is owned by a Chinese company and because there are laws in China that require companies to cooperate with the intelligence work of the Chinese government some U.S. security experts and lawmakers have said using TikTok could cause problems for America's national security.
The TSA says it's never had an official TikTok account but that a small number of its employees have used the app to make videos for the agency's social media outreach. That's not allowed anymore. The TSA is joining the Department of Defense, the State Department and the Department of Homeland Security in putting restrictions on how their employees can use TikTok.