Twitter boss Elon Musk 'not above the law', warns US regulator- PublishedA US regulator says it is watching events at Twitter with "deep concern" after the platform's top privacy and compliance officers reportedly quit."We are tracking recent developments at Twitter with deep concern," Douglas Farrar, the FTC's director of public affairs, said.If we don't do that and there's a massive negative cash flow, then bankruptcy is not out of the question," Mr Musk is understood to have said.It joined other brands, including car firms General Motors, Volkswagen and Audi, drugs giant Pfizer, and food manufacturer General Mills, which owns brands including Cheerios and Lucky Charms.Some brands are said to be concerned that Mr Musk will relax content moderation rules and reverse permanent Twitter bans given to controversial figures, including former US President Donald Trump."