Et les preuves s’amoncellent depuis que cet artice a ete ecrit , y compris Ayers dans son livre « Parents » et Obama dans « Dreams  » citant un poeme sur Chicago en faisant la meme faute :

Ayers and Obama, however, go beyond citing Sandburg. Each quotes the opening line of his poem « Chicago. » From Dreams:

He poured himself more hot water. « What do you know about Chicago anyway? »

I thought a moment. « Hog butcher to the world, » I said finally.

From Parent:

« At the turn of the century, Chicago had a population of a million people and was a young and muscular city – hub of commerce and industry, the first skyscraper city, home of the famous world exposition, « hog butcher to the world » – bursting with energy. »

This I would call a B-level match. What raises it up a notch to an A-level match is the fact that both misquote « Chicago, » and they do so in exactly the same way. The poem actually opens, « Hog butcher for the world. »