WASHINGTON: TikTok CEO Shou Zi Chew battled for the survival of the hugely popular video-sharing app in the United States on Thursday, as he faced a barrage of accusations from Washington lawmakers over the company´s alleged ties to China and its danger to teens.The 40-year-old Singaporean addressed the powerful House Energy and Commerce Committee for hours of relentless grilling by both Republicans and Democrats who fear that Beijing could subvert the site for spying, data harvesting and to...