Society has a right to defend itself from unacceptable behaviour that harms others. Every time you buy groceries, petrol or liquor, you’re on CCTV, and they have reduced dangerous behaviour, that’s why they are installed. So what’s the fuss? Those involved in repeated wanton public violence have forfeited their right to anonymity. Bring on the cameras before anyone else gets injured, it’s in everyone’s best interest. Big Brother has already been watching you for years.