"Surely nobody on a public demonstration needs to wear a mask"
Well, unaccustomed as I am to agreeing with the green-skinnned member for Barnet and Camden, I have to say that on this occasion I think he's hit the nail squarely on the head. Let's make it a criminal offence as soon as possible and let them feel the full force of the law. And let's start by making an example of these louts who started the trend: