A Pakistani boy swims in a water reservoir to cool off as the temperature rises, while others wait their turn, next to a slum area on the outskirts of Islamabad, Pakistan, Tuesday, April 10, 2012. (AP Photo/Muhammed Muheisen)
A Pakistani boy swims in a water reservoir to cool off as the temperature rises, while others wait their turn, next to a slum area on the outskirts of Islamabad, Pakistan, Tuesday, April 10, 2012. (AP Photo/Muhammed Muheisen)
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