https://www.reuters.com/article/us-usa-tiktok-ban-exclusive/trump-to-block-u-s-downloads-of-tiktok-wechat-on-sunday-idUSKBN2691QO >The Trump administration will ban WeChat and video-sharing app TikTok from U.S. app stores starting Sunday night, a move that will block Americans from downloading the Chinese-owned platforms over concerns they pose a national security threat.