Before the Second World War the United States possessed intelligence-gathering organizations that were derisory in comparison to those of the great powers. The War Department gathered information on the military capabilities of foreign states from military attaches; the State Department reported on political and economic developments; both War and State maintained signals intelligence (code-breaking) offices. However, the US possessed no “secret intelligence service” equivalent to the British MI-6 or the action services of other countries. During the Second World War, the US sought to make good this deficiency with the temporary Office of Strategic Services (OSS). After the Second World War, America’s new global role and the Cold War demanded an enhanced intelligence-gathering capability. In 1947, Congress created the Central Intelligence Agency (CIA) to fill this role. Filled with wartime OSS veterans, the new agency had a predisposition to clandestine action, not just to intelligence gathering. Confronting the brutal Soviet KGB around the globe, CIA played a rough game. Eventually, CIA fell afoul of changed national values. The Church Committee hearings led to restrictions on CIA action like assassinations. From the mid-Seventies onward, CIA concentrated conventional intelligence-gathering and analysis.
Then came 9/11. The scales fell from their eyes, or they had a Road to Damascus experience, or whatever other Biblical reference occurs to you. An executive order from President George W. Bush overturned the limits on action. CIA agents lashed out at Al Qaeda operatives wherever they came within reach. Some were killed, either by a rapidly-expanded paramilitary arm of CIA or by drone strikes. Some were captured and subjected to “enhanced interrogation.” In 2003, the US attacked Iraq, only to see early triumph turn into a gory insurgency that seemed to have no end. Soon, there came a backlash against both big wars and the use of torture. A new consensus emerged: killing terrorists is acceptable, but torturing them is not. Certainly, it is less likely to get people keel-hauled by a Congressional committee. According to Mark Mazzetti, CIA “went on a killing spree.” Drones and commandos struck Islamists in Afghanistan, Pakistan, Yemen, and Somalia. While banning the use of torture, President Barack Obama has continued all the other programs begun by the Bush administration.
Arguably, the results have been as disastrous, if not quite so dramatic, for American intelligence as for the Islamists hit by Hellfire missiles launched from Predator drones. In an Econ 101 analysis, multiple needs compete for finite resources. Resources (money, manpower, attention) spent “man-hunting” can’t be devoted to other needs. Yet the US faces multiple current, latent, and potential threats.
The CIA already suffered from maladaptation between the end of the Cold War and 9/11. Its budget fell as part of the “peace dividend”; spending on new technologies further reduced the resources for human intelligence-gathering and analysis; and its former strengths in Soviet and East European issues could not easily be shifted to new areas. (Pashto and Polish both begin with a P, but there the similarity ends.)
America’s political culture is having a hard time discussing the choice between long-term trends and immediate action. The recent murder of five servicemen by what looks like an Islamist “lone wolf” will only make “man-hunting” seem more vital than ever.
 Mark Mazzetti, The Way of the Knife: The CIA, a Secret Army, and a War at the Ends of the Earth (New York: Penguin, 2013).
 In 2004, CIA’s Inspector General condemned some of the practices as “unauthorized” and “inhumane.”
 Including the occasional American renegade who declined to surrender himself to more formal American justice.