> What are the national security concerns for these apps that are not present in the multitude of other apps such as WhatsApp, Facebook Messenger, Skype, Zoom,

> What are the national security concerns for these apps that are not present in the multitude of other apps such as WhatsApp, Facebook Messenger, Skype, Zoom, Instagram, Twitter, Facebook, Google, Gmail, iMessage, Facetime, Vine, Snapchat, YouTube, etc? These are all American companies. Wechat and TikTok are controlled by Chinese companies. > What about the suspicions that Trump is upset that TikTok users helped sabotage one of his big rallies and this is retaliation and thus an overextension of his powers and an exercise in authoritarianism (something he's already done many times anyway)? I suspect that was actually his motive, and the national security reasoning is just a pretext. That said, a stopped clock is right twice a day.