I have to admit, this made me smile...

Nods to Attrition.org;

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

The NSA goes into the forest. They place animal informants throughout the forest. They setup an elaborate technical system for spying on each and every animal. After three months of extensive monitoring, they conclude that rabbits do not exist.

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

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