Was Gripp wearing leather, as befits a caravan guard, or chain, as befits a covert agent?'

In doing so it steered close to illegality, since it is a crime knowingly to disclose that a person is a covert agent.

They learnt the identities of most of the covert agents there.

I get the impression that we maintain covert agents in those places and that they do the same with us.

The U.S. will stick to drones and cash and covert agents and mercenaries -just like it's doing in Mexico, already.