Explain what this entails for early-modern CI and provide examples from the US, the USSR, and Great Britain to support your answer.

According to Christopher Andrews [p.289], Sir Robert Petrie wrote:

It is a disadvantage of [CI] work, by and large, that the results are apt to be mainly negative, that is to say, the better it is done, the less there is to show for it. Also, from its very nature, its secrets can be confided only to the few. It is only fair, therefore, that the good work of the Service, to which I would like to pay my own tribute, should be brought to the notice of the [executive leader] and certainly other high quarters.