By John Hugh DeMastri A high-level TikTok executive repeatedly refused to stop sending American users’ data to China in a congressional hearing Wednesday, claiming that policies currently in development would be sufficient to satisfy America’s national security concerns. TikTok’s Chief Operating Officer Vanessa Pappas claimed that ongoing negotiations with the Committee on Foreign Investment in the U.S. (CFIUS) would develop policies that ensured American users’ data was secured. Pappas was twice asked by Republican Sen. Rob Portman of Ohio if TikTok, which is owned by Chinese social media giant ByteDance, would be willing to refrain from sending American data to...