U.S. President Donald Trump on Thursday signed an order seeking to regulate what he sees as selective online censorship by social media firms, after his tweets received a fact-check alert by Twitter Inc. for the first time.Social media platforms like Twitter and Facebook Inc. cannot be held responsible for the content of their users' posts due to a 1996 law, but Trump's order calls for regulations aimed at stripping the companies' "liability shield" when they engage in censorship or political speech."I'm signing an executive order to protect and uphold the free speech and rights of the Amer…READ FULL ARTICLE