N366754 12: A group of illegal immigrants, while trying to elude the United States Border Patrol, pass under a drain pipe as they float down the New River, near Calexico, Ca., March 18, 2000. The New River, reputed to be the most polluted in the nation, is filled with raw sewage, slaughterhouse remains, and agricultural runoff. Swimming in the water exposes the border runners to a risk of cholera, typhoid, hepatitis, three types of polio, and various types of cancer. (Photo by David McNew/Online USA)
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Hulton Archive David McNew