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Tony Elshoff

Associated Press Modified: July 19, 2012 at 5:00 pm •  Published: July 19, 2012

Construction worker Tony Elshoff installs roofing tile in 100 degree temperatures Tuesday, July 17, 2012 in Springfield, Ill. Along with the unrelenting heat wave, the nation's widest drought in decades is spreading.

More than half of the continental U.S. is now in some stage of drought, and most of the rest is abnormally dry. (AP Photo/Seth Perlman)