Louisiana Task Force 1 member Jesse Davis, center, continues to search a pile of rubble where cadaver dogs indicated a scent of human remains in the Alberta City community of Tuscaloosa, Ala., Thursday, May 5, 2011. Authorities continue the search for those missing. (AP Photo/Jay Reeves)

Associated Press
Louisiana Task Force 1 member Jesse Davis, center, continues to search a pile of rubble where cadaver dogs indicated a scent of human remains in the Alberta City community of Tuscaloosa, Ala., Thursday, May 5, 2011. Authorities continue the search for those missing.  (AP Photo/Jay Reeves)
Louisiana Task Force 1 member Jesse Davis, center, continues to search a pile of rubble where cadaver dogs indicated a scent of human remains in the Alberta City community of Tuscaloosa, Ala., Thursday, May 5, 2011. Authorities continue the search for those missing.
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