Milo Weaver trilogy

2.

Forced to prove his loyalty to his new bosses in order to return to the CIA, reluctant spy Milo Weaver finds himself caught between the self-interests of patriots and traitors.

4.

"Reluctant CIA agent Milo Weaver thought he had finally put 'Tourists'-CIA-trained assassins-to bed. A decade later, [he's] hiding out in Western Sahara when a young CIA analyst arrives to question him about a series of suspicious deaths and terrorist chatter linked to him. Their conversation is soon interrupted by a new breed of Tourists intent on killing them both, forcing them to run. As he tells his story, Milo is joined by colleagues and enemies...