Bretagne Corliss (left), who was deployed to Ground Zero following 9/11, and Bretagne (right), a puppy, walk at the Penn Vet Working Dog Center’s opening Tuesday.
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Bretagne Corliss (left), who was deployed to Ground Zero following 9/11, and Bretagne (right), a puppy, walk at the Penn Vet Working Dog Center’s opening Tuesday. Courtesy of Audrey Byrnett

