Are We Just Gonna Let Him Do This? Yes.

In the J.J. Abrams Star Trek movie, when Young Spock flips out and starts trying to kill Kirk, why did nobody step in?

I know Kirk isn't even supposed to be on the ship, he's a cocky jerk, and he accused the acting captain of not caring care his mother and homeworld just died, but they're just going to stand there? I thought someone would at least point out it's against Starfleet regulations to choke people to death on the bridge, except in self-defense.

Or Uhura would step in because she knows Spock would regret it later (I'd buy it if you told me she knew Spock would never lose control so completely as to kill Kirk).

At the very least, I'd expect Bones to do something, since he's the only friend Kirk has up there, and he's not exactly a huge fan of Spock's to begin with. Step in between them, use a sedative on Spock, or just shout something to draw Spock's attention. I guess you could argue he figured Kirk knew what he was doing when he started insulting Spock, but I don't think Bones has that much faith in Kirk's judgment. Nor should he. Kirk seemed to consistently (to borrow from Smokey and the Bandit 2) let his alligator mouth overload his jaybird head.

Maybe everyone was too dumbfounded a Vulcan went berserk to react, but it seems strange the security guys didn't even try and pull him away. They wouldn't have succeeded until Spock came back to his senses, but that doesn't mean they wouldn't necessarily try.