Former Facebook Director Sarah Wynn-Williams testified that Meta targeted ads at teenagers based on their emotional state.Wynn-Williams documented this claim in her tell-all book 'Careless People' that exposes Facebook's disregard for the harm it can cause.Although the Senate hearing mostly focused on Meta's dealings with China, the senators also inquired about Instagram's impact on children.According to Wynn-Williams, Meta shared information about depressed or vulnerable teens with advertisers to serve targeted advertisements.