How to catch a rabbit

One of Sullivan's readers sends him an old joke from Russia:

The KGB, the FBI and the CIA are all trying to prove that they are the best at catching criminals. The Secretary General of the UN decides to give them a test. He releases a rabbit into a forest and each of them has to catch it.

The CIA goes in. They place animal informants throughout the forest. They question all plant and mineral witnesses. After three months of extensive investigations they conclude that the rabbit does not exist.

The FBI goes in. After two weeks with no leads they burn the forest, killing everything in it, including the rabbit, and make no apologies: the rabbit had it coming.

The KGB goes in. They come out two hours later with a badly beaten bear. The bear is yelling: "Okay! Okay! I'm a rabbit! I'm a rabbit!"

Almost as good as the one about Stalin's pipe. Of course, the Russians turned out to be rather innocent about how the CIA tries to catch a rabbit.