Swine flu problems stem from unsanitary farming conditions, and health problems in general are made worse by unsanitary conditions. Obviously, recent Mexican immigration has transferred some of these problems from Mexico, where they belong, to the United States, in barrios and colonias around the United States. One of the problems is that many recent immigrants, being truly rural, insist on keeping chickens in the heart of modern cities.

• See The Poultry Industry's Chickens (Really!) Come Home To Roost By Walter Pringle
• The Fulford File: The Mexican Country Mouse And The American City Mouse
• Today's Letter: An Illinois Reader Reports Chickens In His Front Yard