9/11 search-and-rescue dog developed close bond with owner

Sunday, September 11, 2011 | 12:01 a.m. CDT; updated 6:40 p.m. CDT, Sunday, September 11, 2011

COLUMBIA — Tuff walks toward her owner with slightly swollen hips, her hind legs wobbling slowly as she moves. Her elbows are calloused, and her brow and mouth peppered with gray hair.

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