The ultimatum follows Musk's firing of half of Twitter's employees
The warning came following a string of snarky tweets from Twitter's new chief
The US FTC is monitoring the company with 'deep concern'
Redundancies follow a dismal Christmas quarter prediction and much higher expenses forecast for next year
Reports say executives were fired "for cause" to avoid severance payouts.
Twitter's CEO, CFO and chair have already left their posts.
Coroner report expresses concern that guardians and parents are unable to examine the content that youngsters are viewing on social media platforms
The cost would outweigh any benefits, researchers argue
Musk appears to have renewed his offer because he had little hope of winning in court.
Rising misinformation on climate change and other issues has led Meta to conduct tests with 'deliberative democracy'