Colonel DeHaans: Admiral, I very, very strongly advise against this.

Gathering the prisoners breaks one of the first rules of effective interrogation. You will contaminate them, and they will contaminate each other.

Admiral Emm: I intend to have them all executed anyway, Colonel. Why does it matter?
Colonel DeHaans: If I'm going to experiment on them I need a control group!
Admiral Emm: It's nice to see you're not being motivated by anything silly, like the milk of human kindness.