Aerial view of a section of the town of Yarnell, Arizona destroyed by wildfire
An aerial view of a section of the town of Yarnell, Arizona that is destroyed by a wildfire which ripped through the town is seen on July 1, 2013. An elite squad of 19 Arizona firemen was killed in the worst U.S. wildland firefighting tragedy in 80 years apparently outflanked and engulfed by wind-whipped flames in seconds, before some could scramble into cocoon-like personal shelters. REUTERS/Rick Wilking (UNITED STATES - Tags: DISASTER ENVIRONMENT)