Lawmakers say TikTok is a national security threat, but evidence remains unclear

As TikTok CEO Shou Zi Chew prepares for his first congressional grilling on Thursday, much of the focus will undoubtedly be on the short-form video app’s potential national security risks.

​As TikTok CEO Shou Zi Chew prepares for his first congressional grilling on Thursday, much of the focus will undoubtedly be on the short-form video app’s potential national security risks.