It’s safe to assume that most Telegraph readers are familiar with the concept of freedom of speech; that in our enlightened, democratic society, you are entitled to your views and to the lawful expression of them. If, as the Prime Minister himself made clear this week, you firmly adhere to this belief in the importance of freedom of expression, then the episode around the closure of Nigel Farage’s accounts by NatWest Group should concern you. That’s because this freedom is a cornerstone of...