Anyone who thought an apology to Donald Trump was going to stop his threat of a lawsuit was deluded, writes Culture and Media Editor Katie Razzall.

Britain's public service broadcaster, the BBC, was on course to be sued for around one-sixth of its revenue by President Trump for alleged defamation.

The BBC is right in taking Donald Trump’s threat to sue “seriously,” a media lawyer has warned. The US president has threatened to seek $1 billion from the corporation over a…