I guess it works better if you've had a bottle of Stoly.
Also funny is this list of the CIA's admitted failures - important events that it failed to anticipate:
-The Likelihood of North Vietnam Intervention in South VietnamBoy. And that's just what the CIA admitted to dropping the ball on in 1983. That doesn't include all the crap they've missed in the last quarter-century!
-The Likelihood of All-Out Soviet Support of Hanoi
-The Sino-Soviet Split
-The First Chinese Nuclear Test
-The Soviet ALFA-Class Submarine
-The OPEC Price Increase of December 1973
-Nicaragua (The Nature of Somozas Opposition)
A cousin of mine has a saying - "The CIA only knows about the shit it starts." It's a good rule to remember.
(The article, if you're curious, is "Learning from Intelligence Failures", by John Hollister Hedley (International Journal of Intelligence and Counter-Intelligence, v. 18, p. 435-450))