Donald Trump has signed an executive order aimed at curbing protections for social media giants. The US president is engaged in a public feud with the companies, which he has accused of censoring free speech and bias, and said: "We're fed up with it." It comes as Twitter flagged one of Mr Trump's tweets about mail-in ballots in California with a fact-check warning. The executive order points out that social media companies, such as Facebook and Twitter, should forgo their legal immunity from the law, should they edit users' content on their platforms. Currently, Section 230 offers legal protections to...