As temperatures top 100-degrees in the nation's capital, visitors take their shade with them by carrying umbrellas as they tour the U.S. Capitol grounds June 29, 2012 in Washington, DC. Heat warnings ... more 
As temperatures top 100-degrees in the nation's capital, visitors take their shade with them by carrying umbrellas as they tour the U.S. Capitol grounds June 29, 2012 in Washington, DC. Heat warnings are up and people are being told to stay indoors as the heat index will soar to around 110-degrees Friday and Saturday. (Photo by Chip Somodevilla/Getty Images) less 
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Sat, Jun 30, 2012 9:00 AM EDT