Well seeing as no one else has said anything!
Who one earth is the owner of the (200 - 400mm?) in the centre left of the photo? It can't be the guy on the extreme left as he's shooting Nikon, which leaves the one with the sunglasses. If it is him then he has both hands on the camera he's using and that one appears suspended in mid air. Tripods aren't allowed only monopods, he doesn't seem to be taking very good care of expensive equipment which earns his crust.
The Olympics is pretty much a disaster for the UK, greedy hospitality companies raised prices so high that no one used their facilities, and now they're cutting prices to less than they were normally. London is pretty quiet, no real bonus from visitors to bars & restaurants.
Our politicians has passed draconian laws which give an already dodgy Police force powers far in excess of what is needed, yesterday they arrested some kid for tweeting an insult against a competitor - the insult was that they guy had let himself & his father (deceased) down. Photographers are simply not tolerated anywhere in the vicinity of the Olympic park, and certainly not inside, the only ones allowed are accredited hacks with the large passes shown in the photo.
Another sad example of Britains obsession with security and the removal of freedom & the rights of the people.