Fear them - fear the terrists
Hey all you hard working good people ! Be careful ! Because there are many bad people, terrorists, who will protest. If they are protesting, you should fear them, because they are terrorists. All protesters are terrorists.
This is why we oh-so-discreetly told every employer in London to tell their staff just what a threat they are under. The jobless terrorist protesters are threatening you on the street, so you must be careful, and keep coming to work and paying your taxes and not protesting because you are not like them. You are not a terrorist. Are you?
This is why we have to photograph them, video them, search their pockets, question them, arrest them, keep them at bay with riot shields and batons, blind them with tear gas (so they can't take aim at you), detain them without charge for 28 days. And take them away to a far away land so you are all safe in London. And we'll ask them questions, encourage them to talk through any means possible because they know, they have a plan, and we just need to get them to tell us. To keep you all safe.