For those who know a little bit of the history of the USSR:
Stalin, Khrushchev, Brezhnev, and Gorbachev are riding a train. Suddenly the train stops. The four General Secretaries wait, but nothing happens; the train won't start.
Stalin stands up and says, "Comrades, I will solve this problem!" He goes to the front of the train and shoots the engineer. Stalin returns to the traincar, but the train still won't start.
Khrushchev stands up and says, "Comrades, I will solve this problem!" He goes to the front of the train and hires a new engineer, offering to pay him five times the salary of the old one. But when he returns to the traincar, the train still hasn't started.
Brezhnev stand up and says, "Comrades, I will solve this problem!" He closes all the curtains on the traincar windows and says, "And now, Comrades, we will sit down and pretend the train is moving!"
Gorbachev, exasperated, stands up and says, "Comrades! I will solve this problem!" He goes to the front of the traincar, and returns a minute later. "Comrades! I have discovered the problem: There are no train tracks ahead of us! Let us tear up the tracks behind us and put them in front of the train so that we can continue our journey!"
So the four of them get out and pull up the rails behind the train, and put them in front. But by the time they have finished, they cannot continue the journey, because Yeltsin stole the train!