NEW YORK, NY - SEPTEMBER 11: Retired Air Force Staff Sergeant Alicia Watkins of Washington, DC, places a Purple Heart medal next to the name of her friend, Army Sergeant Tamara Thurman, on the bronze... more 
NEW YORK, NY - SEPTEMBER 11: Retired Air Force Staff Sergeant Alicia Watkins of Washington, DC, places a Purple Heart medal next to the name of her friend, Army Sergeant Tamara Thurman, on the bronze plaque that bear the names of the victims at the 9/11 Memorial South Pool during the tenth anniversary ceremonies of the September 11, 2001 terrorist attacks at the World Trade Center site, September 11, 2011 in New York City. Watkins said she feels "a tremendous amount of guilt" that she survived the attack on the Pentagon when Thurman did not. Since then Watkins has created a charity in the name of her friend and roommate. "All I wanted to do was pin this purple heart on her," she said.New York City and the nation are commemorating the tenth anniversary of the terrorist attacks which resulted in the deaths of nearly 3,000 people after two hijacked planes crashed into the World Trade Center, one into the Pentagon in Arlington, Virginia and one crash landed in Shanksville, Pennsylvania. (Photo by Chip Somodevilla/Getty Images) less 
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Getty Images | Photo By Chip Somodevilla / Getty Images
Sun, Sep 11, 2011 1:56 PM EDT