I've consciously tried not to romanticize anything, especially not intelligence work. I've always said that I've been writing a series of episodic, naturalistic novels. The people just happen to be spies, politicians, civil servants.
People are dying to tell you their secrets; it's just a matter of getting the conversation going in the right direction. If you just let people fill the silence, they will let you the most extraordinary things. I sometimes wonder if afterward they remember what they've said.
I cannot grasp the difference between killing people with drones or rifles and knives. The objective in war is to kill the enemy before he kills you. I can't fathom the almost religious zeal with which the use of drones is being opposed.