Bishop: "Nathan, we killed this man. We used him and we killed him. Okay, than you got to help me understand this one. You got... Nathan, what are we doing here? And don't give me some bullbleep about the greater good."
Muir: "That's exactly what it's about. Because what we do is unfortunately very very necessary. And if you're not willilg to sacrifice scum like schmidt then those that want nothing more than their freedom, then you better take a long hard look at your chosen profession my friend. Because it doesn't get any easier. You wanna walk? You wanna walk, walk."