Apparently they are quite accurate. 

If the CIA had a crystal ball, then they would probably not be routinely blindsided by world events. Lacking such a device, the agency has endured notable analytical failures. During the early 1990s, sudden collapses of Somalia, Zaire, Rwanda, and the Soviet Union seemingly appeared without warning.

Strategic surprises have always been a problem for intelligence agencies. The material impossibility of having eyes everywhere requires making judgments without seeing a complete picture, let alone the future. Assessing the likeliness of future rare political events has had dubious reliability.

Thus, in 1994, the CIA's Directorate of Intelligence commissioned the Political Instability Task Force (PITF), formerly known as the State Failure Task Force, a clairvoyant-esque squad of social-scientist brainiacs charged with churning global political data into global instability forecasts.

I knew that already.

How did you already know that??