Is TikTok a threat to US national security?

TikTok is the world's fastest-growing social media app, but the US and some Western governments say it allows China access to private data and is a security threat. The company and the Chinese government both deny this. So who should we believe?  Join host Nastasya Tay  Guests:  Einar Tangen - a Senior Fellow at the Taihe Institute. Sarah Kreps - Founder and Director of the Technology Policy Institute at Cornell University.  Adrian Weckler - Technology Editor at the Irish Independent.