In this photo taken on June 30, 2011, neurologist Rene Pazdan discusses traumatic brain injury, or TBI, and other problematic symptoms at Fort Carson, Colo. Thousands of soldiers have suffered from ... more 
In this photo taken on June 30, 2011, neurologist Rene Pazdan discusses traumatic brain injury, or TBI, and other problematic symptoms at Fort Carson, Colo. Thousands of soldiers have suffered from various degrees of TBI after nearly 10 years of a military presence in Afghanistan. (AP Photo/Bryan Oller) less 
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Associated Press | Photo By Bryan Oller
Sun, Aug 14, 2011 3:20 PM EDT