Harry Potter author has long been a target of criticism by trans activists who have taken offence at some of her social media posts.Rowling, 54, responded to the criticism in a 3,600 word blog post on her website in which she detailed five reasons she felt the need to talk about trans issues, including her interest in "both education and safeguarding" and "freedom of speech".Explaining her final reason, she wrote: "I've been in the public eye now for over 20 years and have never talked publicly.