S•TSocial • TechCrunch·last yearshared a link post in group #TechCrunch Socialtechcrunch.comMeta whistleblower Sarah Wynn-Williams says company targeted ads at teens based on their 'emotional state' | TechCrunchMeta whistleblower Sarah Wynn-Williams, the former Director of Global Public Policy for Facebook and author of the recently released tell-all book