United States
Brennan, a civilian at the CIA
The militarisation of the CIA, which began under General Hayden and was pursued by Leon Panetta and David Petraeus, could come to a halt with John Brennan.
The Central Intelligence Agency (CIA) was the successor to the Office of Strategic Services (OSS) after the Second World War. Its heyday was during the Cold War. CIA considers itself as the senior intelligence service among the US Intelligence Community. Before the establishment of the Defense Clandestine Service (DCS), it was the only agency able to carry out clandestine operations, through its National Clandestine Service (NCS).