Why I don't envy you lot living in London, volume 30:
In essence, London has abdicated all rights and responsibilities to the International Olympic Committee, and implemented legislation which creates radical new spatial demarcations not only within the Olympic Park, but because of the distributed nature of the Olympic venues, across the whole of central London. London has surrendered the traditional rights to the city to the demands of the Olympic 'family' and their corporate paymasters. What the IOC want, London will give. London will be on brand lockdown.
The most carefully policed Brand Exclusion Zone will be around the Olympic Park, and extend up to 1km beyond its perimeter, for up to 35 days. Within this area, officially called an Advertising and Street Trade Restrictions venue restrictions zone, no advertising for brands designated as competing with those of the official Olympic sponsors will be allowed...This will be supported by preventing spectators from wearing clothing prominently displaying competing brands, or from entering the exclusion zone with unofficial snack and beverage choices. Within the Zone, the world's biggest McDonald's will be the only branded food outlet, and Visa will be the only payment card accepted.
Now we know what the SAMs are for. Firing at people making unofficial snack choices.