To operate an intelligence network against the Islamist terror is terribly difficult because they don't have a central command and control center suc… - John le Carré

“It is not fashionable to quote Stalin but he said once, ‘half a million liquidated is a statistic, but one man killed in a traffic accident is a national tragedy.’ He was laughing, you see, at the bourgeois sensitivities of the mass. He was a cynic. But what he meant is still true: a movement which protects itself against counter-revolution can hardly stop at the exploitation—or the elimination, Leamas—of a few individuals. It is all one, we have never pretended to be wholly just in the process of rationalising society. Some Roman said it, didn’t he, in the Christian Bible—it is expedient that one man should die for the benefit of many.”
“I expect so,” Leamas replied wearily.
“Then what do you think? What is your philosophy?”
“I just think the whole lot of you are bastards,” said Leamas savagely.

I would say that since the war, our methods—ours and those of the opposition—have become much the same. I mean you can’t be less ruthless than the opposition simply because your government’s policy is benevolent, can you now?

"We've had enough." He took back the report and jammed it under his arm. "We've had a bellyful, in fact."
"And like everyone who's had enough," said Control as Alleline noisily left the room, "he wants more."