Heat wave bakes Midwest | 07.20.11

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A child cools off in mist at the Henry Doorly Zoo in Omaha, Neb., Monday, July 18, 2011. A heat wave is smothering the Midwest with a heat index well over 100 in most places. Cooling centers are opening, and farmers are scrambling to prevent more livestock deaths. (AP Photo/Nati Harnik) NATI HARNIK — AP

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