Explained: Why TikTok is under the scanner in the US

Senior US senators Chuck Schumer and Tom Cotton have called for an investigation into whether the social video app poses a national security threat.

TikTok is now the second most downloaded app, just behind Facebook’s WhatsApp.

TikTok is in the news once again. Days after coming under fire for what some call censoring of content around the Hong Kong protests, senior US senators Chuck Schumer and Tom Cotton have called for an investigation into whether the social video app poses a national security threat.