Nation wilts as heat wave spreads eastward

Vanity Mendez, 11, left, Isaiah Rivera, 6, center, and Jonathan Medina, 11, cool off at an open fire hydrant in the East Village neighborhood of Manhattan, Thursday, July 21, 2011. A heatwave that has enveloped much of the central part of the country for the past couple of weeks is moving east and temperatures are expected to top the 100-degree mark. (AP Photo/Mary Altaffer)