America is going to have to reckon with an internet that is becoming less American.

Some U.S. lawmakers on both sides of the partisan divide have said they are worried about TikTok, the app that lets users record and share short skits or dance routines to music. The app quickly became popular in the United States and some other countries, and that has generated anxiety about TikTok's ownership by the Chinese internet company ByteDance Inc.

The U.S. is conducting a national security review of TikTok, and a foreign investment committee is considering whether ByteDance should be forced to unwind an acquisition that brought the TikTok app to the U.S. The U.S. Navy has alerted personnel not to use TikTok on government-issued smartphones because of a security threat that the navy didn't detail.