It's the nineteen twenties and a veteran of the Red Army is standing in line for bread in Leningrad in a blizzard. After several hours a political komissar comes out of the building to announce that there isn't enough bread for everyone and "All Jews must leave the queue".
Several more hours pass and again the political komissar comes out of the building to announce that there is even less bread than they originally thought and "Only Russians may remain in the queu" so all the Kazaks and Georgians, etc leave.
Finally, late into the night, the komissar comes out to say, "There is limited bread and only veterans of the Red Army may remain in the line."
Our patriotic hero is still in line with about twenty others when the Komissar comes out to announce that "In fact there is no bread at all."
At the news the veteran couldn't help but remark, "It seems that even after the Revolution the Jews are still getting preferential treatment."