The CIA, FBI, and the KGB are tasked with finding a rabbit in a forest...
The CIA show up after a few days and release a 6000 word article on the fact that rabbits don't exist.
The FBI show up with a dead rabbit and say in a press release "The rabbit had it coming."
The KGB show up with a bruised and beaten bear. The bear is forced to make a statement "I am a rabbit, my father was a rabbit, and my mother is a rabbit. My whole family are rabbits!" the bear disappears shortly after...
A frightened man came to the KGB. "My talking parrot has disappeared."
"That's not the kind of case we handle. Go to the criminal police."
"Excuse me, of course I know that I must go to them. I am here just to tell you officially that I disagree with the parrot."
A Soviet citizen turns on the TV
On the first channel, Brezhnev is delivering a speech. The man switches to the second channel: Brezhnev again. Channel three: still Brezhnev. He turns to the fourth channel, and it’s showing a KGB colonel who shakes his fist and warns: "You’d better stop changing channels..."