Allen Dulles

Clandestine intelligence collection is chiefly a matter of circumventing obstacles in order to reach an objective.

the kind of man who is equipped by his training to breach them is not likely to have the technical knowledge that will enable him to make a useful report on the complex targets that exist nowadays.

If you don’t know anything about nuclear reactors, there is little you can discover about one, even when you are standing right next to it.