The issue focused on by this week's Supreme Court ruling on whether or not it was legal to carry a knife in public is one that most people would agree on. But which areas in our society have been affected by it? On the internet? Or on social media? Or by public transport? Or by how we eat? Or by our doctor? Or by our parents? Or by our partners? Or by our friends? Or by our partner? Or by our bank? Or by our computer? Or by our