Nick Fury: You think you could make Loki tell us where the Tesseract is?
Thor: I do not know. Loki's mind is far afield. It's not just power he craves, it's vengeance, upon me. There's no pain would prise his need from him.
Nick Fury: A lot of guys think that. Until the pain starts.
Thor: What are you asking me to do?
Nick Fury: I'm asking, what are you prepared to do?
Thor: Loki is a prisoner.
Nick Fury: Then why do I feel like he's the only person on this boat that wants to be here?