[4/21 18:00] Meta capturing employee mouse/keystroke for AI training / SoundHound AI acquires LivePerson

AI News Flash for April 21, 2026 at 18:00 UTC. Topics: 1. Meta capturing employee mouse/keystroke for AI training https://www.reuters.com/sustainability/boards-policy-regulation/meta-start-capturing-employee-mouse-movements-keystrokes-ai-training-data-2026-04-21/ 2. SoundHound AI acquires LivePerson https://www.soundhound.com/newsroom/press-releases/https/wwwsoundhoundcom/newsroom/soundhound-ai-to-acquire-liveperson-combining-proprietary-voice-agentic-ai-and-digital-messaging-to-create-a-world-leading-end-to-end-omnichannel-conversational-ai-platform/ 3. YouTube celebrity AI deepfake removal tool https://www.theverge.com/ai-artificial-intelligence/915872/celebrities-will-be-able-to-find-and-request-removal-of-ai-deepfakes-on-youtube 4. Sullivan & Cromwell AI hallucinations apology https://www.reuters.com/legal/litigation/sullivan-cromwell-law-firm-apologizes-ai-hallucinations-court-filing-2026-04-21/ 5. Dell $750M UT AI-native medical center https://www.ctpost.com/business/article/michael-and-susan-dell-fund-ai-native-medical-22218181.php