In this Thursday, Nov. 15, 2012 photo, a worker repairs a turbine 

In this Thursday, Nov. 15, 2012 photo, a worker repairs a turbine inside the Kajaki power station at the dam in Helmand province, south of Kabul, Afghanistan. (AP Photo/Heidi Vogt)
Associated Press
In this Thursday, Nov. 15, 2012 photo, a worker repairs a turbine inside the Kajaki power station at the dam in Helmand province, south of Kabul, Afghanistan. (AP Photo/Heidi Vogt)
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