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The chief executive of social media giant TikTok is focusing in front of the US Congress this morning.
He's coming under heavy questioning over whether TikTok's vast trove of user data poses a national security threat, due to fears it could be passed on to the Chinese communist party.
The company's Chinese-owned parent company Bytedance is under pressure from Washington to sell its stake in the app.
Shou Zi Chew, TikTok's CEO, wanted to distance the Singapore-based company from any connection to China.
US investment bank Wedbush Securities senior equity analyst Daniel Ives has had a close eye on proceedings.