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Who's your CNN Hero of the Year?
Mary Cortani and her group, Operation Freedoms Paws, help war veterans train their own service dogs in northern California.
The story behind the Hero
A trip to the grocery store used to send James McQuoid into a panic. When he heard a child crying, he would remember kids screaming in Iraq.
Want to get involved? Check out the Operation Freedom Paws website and see how to help.
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Exploring the issue
Many U.S. war veterans are suffering from post-traumatic stress disorder, and their symptoms are so bad they can't sleep or even leave the house.