K9 Search and Rescue Specialists Inc., Tracy Sargent works with her cadaver dog Chance as they search a wooded area for survivors in Tuscaloosa, Ala., Wednesday, May 4, 2011. Authorities have said ... more 
K9 Search and Rescue Specialists Inc., Tracy Sargent works with her cadaver dog Chance as they search a wooded area for survivors in Tuscaloosa, Ala., Wednesday, May 4, 2011. Authorities have said they expect the search will continue for at least another week. less 
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Associated Press | Photo By Dave Martin
Wed, May 4, 2011 2:15 PM EDT