Tourists walk in the shade of trees along The Strip in Las 

Tourists walk in the shade of trees along The Strip in Las Vegas on Saturday, June 29, 2013. Saturday's daytime high was expected to reach 117 degrees, which is the city's all-time high. It was 108 at noon Saturday in Sin City. (AP Photo/Julie Jacobson)
Associated Press
Tourists walk in the shade of trees along The Strip in Las Vegas on Saturday, June 29, 2013. Saturday's daytime high was expected to reach 117 degrees, which is the city's all-time high. It was 108 at noon Saturday in Sin City. (AP Photo/Julie Jacobson)
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