https://www.reuters.com/article/us-usa-tech-nationalsecurity/google-apple-asked-if-apps-like-tiktok-must-disclose-foreign-ties-idUSKBN1YH2B5 >The chair of a congressional panel wrote letters to Alphabet's Google and to Apple on Friday to ask what if any disclosures mobile apps are required to make regarding overseas ties, a concern that follows reports of Chinese investment in popular apps like TikTok and Grindr.