There has been a point made in the comics that Spock has been risking his life more and more. Uhura has talked to him about it. [See issue #6.] She thinks he's still grieving the loss of his mother and world and that that is impairing his judgement. He's making choices that "ignore all sense of self-preservation." Maybe trying too hard to save others at the expense of himself. To this, all Spock would say is that he would try to change . . . "as circumstances require." Now he's volunteered to go into a volcano? [Hey, a Vulcan in a volcano.] What does that say about Spock's reasoning? Couldn't they have gotten a drone to do it, or something?
my thoughts exactly
It's funny because on one hand it seems that Spock is all vulcan and logic, apparently, but when you think about it he isn't as vulcan as he's being just impulsive and in a way.. illogical. That's not acting as a vulcan, it's acting like a human man who doesn't think about consequences.
So, I think that Uhura in the comics was totally right about him and I'm curious to know how they will play it in the movie because I expect them to deal with his grief in a realistic way.