Wiktionary
triple agents
n. (triple agent English)
Usage examples of "triple agents".
Yet on the other hand, he reflected, the French intelligence services had very soon taken to slipping their own people in among these messengers, or if not their own people then those uneasy particoloured creatures the double or even triple agents, and conceivably the sender of the bones might be one of these.
Defectors, double and triple agents, and field officers returned from complex assignments for rest and debriefing were continuously processed through its various agendas.
We all seem to be double and triple agents with unknown sources and unsuspected lines of control, reporting a little here and a little there as we try to manage our secret networks of feeling and doing, our own little complex networks of life.