Are people fucking serious? I find some of these comments to be baffling. The guard didn't beat the shit out of the kid, he wasn't on some power trip and he wasn't even treating him like a goddamn adult (If you think an adult would be treated in the same way and you're actually being serious, then you're incredibly delusional).
The kid committed an offense. He knows he did something wrong, because he's fucking twelve. TWELVE! Not seven or eight years old during which he might not yet have learned how to behave. What, is the common person retarded at that age (Don't even THINK about bringing up kids on xbox live, because nearly everyone of any age can be an irritating prick due to anonymity)? I don't know about you guys or your upbringing, but I sure as shit knew how to act towards authority figures and in general at that age.
What the guy does is cuff him and restrain him. The other kids, including the restrained kid, taunt the guards with words like "whore" and "I'm going to kill you". The kids say that the guard can't do that, because the kid isn't fifteen and the guard replies with something incredibly sensible: "Do you think you can act any way you want just because you're twelve?". The restrained kid then kicks the guard, the guards press him against the floor (not violently) and then drag him away. And the guard is to blame?
Sure, a lot of cops abuse their power and I am completely against hitting kids (You can raise a child without beating him. Spanking is possibly acceptable, but just plain hitting is child abuse and anyone who does that or thinks of doing that is unfit to be a parent and/or an idiot), but this is fucking ridiculous. Kids need to be taught matters, they need to be taught that what they say or do have consequences and that they should respect adults. That's ALL that happens here.
What would you want them to do? Just stand there and say "Oh ho ho, silly children. Swearing, committing crimes and disrupting the order is against the rules, but you're kids, so go ahead."? If the clip contained cops beating a child for misbehaving (or hitting him in any way, actually), I would have clicked the no option faster than the speed of light, but nothing of the sort happens here.
And the reason they were holding the kid for a good four minutes or so, was because multiple guys were shouting death threats at them and they waited until one or two other guards could come and help them out. They wanted to be sure nothing bad would happen, such as the kids suddenly starting to attack the guards due to them being outnumbered or whatever. That's it.
Oh and there's one other thing that quite a few people seem to forget for some reason: Using force =/= Using violence.