What part of 'Jesse James is killing people' don't you understand? People are dying that aren't supposed to, and the longer he's alive, the more he's going to mess up history. And since when am I the one who's worried about messing up history?
Mason: What did you think would happen? That you'd get on your proud little soap box, make a speech and they'd just slink away into the darkness? Rufus: Please don't do this. Mason: You asked me to pick a side. Well, I did. Now I suggest you reconsider your allegiances, because once she's trained, you become expendable.