TikTok Chief Executive Shou Zi Chew is pictured on the day he will testify before a House Energy and Commerce Committee hearing entitled "TikTok: How Congress can Safeguard American Data Privacy and Protect Children from Online Harms," as lawmakers scrutinize the Chinese-owned video-sharing app, on Capitol Hill in Washington, U.S., March 23, 2023. Evelyn Hockstein | Reuters For several years now, ByteDance's TikTok has been the focus of lawmakers and intelligence officials who fear it could be used to spy on Americans. Those concerns took center stage during a five-hour grilling of TikTok's CEO back in March. But while TikTok…