If you haven't seen this yet, where the hell have you been? This brings up a few questions:
Freedom of Speech? Well, I think that freedom of speech isn't a free pass to say whatever you want, wherever you want. When you cease to act in a civil and respectful manner, you forfeit the right to expect civility and respect in turn. This kid went into this thing with the intent to disrupt and get attention. I'm not sure the disruption was so successful, as Kerry kept talking while everything was going on, but he sure got some attention. YouTube is chock full of remixes, spoofs, and video responses.
Excessive force? Yeah, maybe, but I wasn't there. When the cops say to leave, you leave. It's as simple as that, especially when you're there doing something you know you shouldn't be doing. And then when you get arrested, you resist? There were about a half-dozen cops there, though. They couldn't get this kid in cuffs and carried away? Anyway, they tell him to stop or he'll get the taser. So he acts like a moron and gets tased.
Maybe if more people got tased, there'd be a lot less stupid in the world.